ICTP - Scientific Calendar

PLEASE NOTE: Due to ongoing concerns about the COVID-19 virus, ICTP conferences, schools and workshops are now being conducted mostly online until further notice. Please check ICTP's Scientific Calendar frequently for updates.

NEW: Attend one of ICTP's virtual seminars.

Each year, ICTP organizes more than 60 international conferences, workshops, and numerous seminars and colloquia.

Interested in attending an activity? Complete an online application form: Events in the scientific calendar that have an "smr" number require participants to apply online. Click on the activity and complete the online application form.
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External organisations can pay for and organize their own high-level scientific and cultural events at ICTP. Details for these "Hosted Activities" are available in the Logistic Guidelines for Hosted Activities (pdf download).
Travel fellowships for ICTP conferences and workshops are available.

Showing 348 records

Activity

10 Jan 2013 - 12 Jan 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

16th International Workshop on Computational Physics and Materials Science: Total Energy and Force Methods | (smr 2440)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): C. Filippi (The Netherlands), R.M. Martin (USA). ICTP Local Organizer: N. Binggeli

Secretary: S. Fairclough

Support E-Mail: smr2440@ictp.it

Seminar

10 Jan 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Astrophysical probes for Dark Matter searches

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Fabio IOCCO (University of Stockholm, Sweden)

Seminar Start Time: 16:30

Activity

14 Jan 2013 - 25 Jan 2013

@ Pune - India

Earth System Physics

Targeted Training Activity (TTA): Intraseasonal Monsoon Predictability and Prediction | (smr 2507)

Organizer(s): B.N. Goswami, J. Shukla, F. Kucharski, S. Anguluri. ICTP Local Organizer: F. Kucharski

Secretary: L. Iannitti

Support E-Mail: smr2507@ictp.it

Activity

14 Jan 2013 - 18 Jan 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

Hands-on Tutorial on Electronic Structure Computations | (smr 2522)

Organizer(s): Organizer: S. Moroni (SISSA & DEMOCRITOS), ICTP Local Organizer: N. Binggeli

Laboratories: INFOLAB.

Secretary: S. Fairclough

Support E-Mail: smr2522@ictp.it

Europe/Rome We study the number of clusters in 2d critical percolation, NΓ , which intersect a given subset of bonds, Γ. In the simplest case, when Γ is a simple closed curve, NΓ is related to the entanglement entropy of the critical diluted quantum Ising model, in which Γ represents the boundary between the subsystem and the environment. Due to corners in Γ there are universal logarithmic corrections to NΓ , which are calculated in the continuum limit through conformal invariance making use of the Cardy-Peschel formula. The exact formulae are confirmed by large scale Monte Carlo simulations. These results are extended to anisotropic percolation where they confirm a result of discrete holomorphicity. I. A. Kovács, F. Iglói and J. Cardy, Phys. Rev. B 86, 214203 (2012), arXiv:1210.4671 ICTP ICTP pio@ictp.it

Seminar

15 Jan 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Corner contribution to percolation cluster numbers"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Ferenc IGLOI (Research Institute for Solid State Physics and Optics, Budapest )

Seminar Start Time: 11:30

Europe/Rome Abstract: The next few years will bring a wealth of new information about the primordial cosmological fluctuations. In this talk, I will discuss how observable non-Gaussianities and gravitational wave signals encode the physics of the early universe. First I will discuss signatures of global symmetries in the early universe, arguing that even the simplest slow roll inflation models can lead to observable non-Gaussianity and primordial gravity waves. Next, I will consider more generally the possibility to probe how the inflaton couples to radiation. ICTP ICTP pio@ictp.it

Seminar

15 Jan 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Probing the Physics of Inflation

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

On quantum corrected Kaehler potentials in F-theory

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Raffaele SAVELLI (Max-Planck-Institute, Munich, Germany)

Seminar Start Time: 16:30

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Unitarity and infall: black holes, fuzzballs and firewalls

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Borun CHOWDHURY (University of Amsterdam, The Netherlands)

Seminar Start Time: 16:30

Activity

28 Jan 2013 - 1 Feb 2013

@ Trieste - Italy

Preparatory School to the Winter College on Optics | (smr 2442)

Room: Leonardo da Vinci Building Euler Lecture Hall

Organizer(s): R. Ramponi (Italy), F. Mendoza (Mexico), F. Laurell (Sweden). Local Organizers: J. Niemela (ICTP) and M. Danailov (Elettra)

Laboratories: MB LAB

Secretary: F. Delconte

Support E-Mail: smr2442@ictp.it

Europe/Rome Activity Secretariat:  The Abdus Salam International Centre for Theoretical Physics  Ms. M. Poropat Strada Costiera 11 I-34151 Trieste, Italy Telefax: +39-040-22407540  Telephone: +39-040-2240540 Deadline for requesting participation: 28 OCTOBER 2012 smr2504@ictp.it Updated list of INVITED LECTURERS: G. Aeppli (University College London) D. Belitz (University of Oregon, Eugene) J. Chakhalian (Univ. of Arkansas, Fayetteville) N. Dean (Nature Communications, London) A. Fert (Université Paris XI, Orsay) M. Fogler (Univ. of California San Diego, La Jolla) P. Fulde (MPIPKS, Dresden) M. Gabay (Université Paris-Sud, Orsay) H.Y. Hwang (Stanford University) P. Kim (Columbia University, New York) J. Lesueur (ESPCI, Paris) I. Martin (Los Alamos National Laboratory) L.W. Molenkamp (University of Würzburg) T.K. Ng (Hong Kong Univ. Science & Technol.) W. Pickett (University of California, Davis) G. Stewart (Univ. of Florida, Gainesville) S.C. Zhang (Stanford University) Singapore - Singapore ICTP pio@ictp.it

Activity

28 Jan 2013 - 8 Feb 2013

@ Singapore - Singapore

Condensed Matter and Statistical Physics

School on Modern Topics in Condensed Matter Physics | (smr 2504)

Organizer(s): A.H. Castro Neto, M.A. Cazalilla, L.C. Kwek, M. Mueller, C. Panagopoulos, K.K. Phua

Secretary: M. Poropat

Cosponsor(s): Centre for Quantum Technologies, NUS; Graphene Research Centre, NUS; Institute of Advanced Studies, NTU; Physics of Novel Electronics, NTU; Office of Naval Research Global

Support E-Mail: smr2504@ictp.it

Europe/Rome Topics will include: - Taming the phenomena - Finding signals in noise - Living on a diet of bits - More than the sum of its parts - Making predictions ICTP ICTP pio@ictp.it

Seminar

28 Jan 2013 - 1 Feb 2013

@ ICTP

The Physics of Life: Searching for Theories

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Professor William BIALEK (John Archibald Wheeler/Battelle Professor in Physics, Princeton University, USA)

Seminar Start Time: 16:30

Europe/Rome I will introduce Tensor Network states and explain in this context two strategies for extracting universal quantities at conformal invariant fixed point of spin chains. One of them the scaling approach is better suited to simple tensor networks such as matrix product states and tree tensor networks. More sophisticated tensor networks (such as the MERA) allow to directly extract universal properties from the tensors of the network. I will present results obtained through both approaches. ICTP ICTP pio@ictp.it

Seminar

29 Jan 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Overview of 1D tensor networks and their application to quantum phase transitions"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Luca TAGLIACOZZO (The Institute of Photonic Sciences, Barcelona )

Seminar Start Time: 11:30

Activity

4 Feb 2013 - 15 Feb 2013

@ Trieste - Italy

Winter College on Optics: Trends in Laser Development and Multidisciplinary Applications to Science and Industry | (smr 2443)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): R. Ramponi (Italy), F. Mendoza (Mexico), F. Laurell (Sweden). Local Organizers: J. Niemela (ICTP) and M. Danailov (Elettra)

Laboratories: MB Lab

Secretary: F. Delconte

Cosponsor(s): the International Commission for Optics (ICO), the Optical Society of America (OSA), the International Society for Optics and Photonics (SPIE), the European Optical Society (EOS), the Società Italiana di Ottica e Fotonica (SIOF), the US National Academy of Sciences (NAS), the Photonics Society (IEEE), and the International Society on Optics Within Life Sciences (OWLS)

Support E-Mail: smr2443@ictp.it

Activity

4 Feb 2013 - 15 Feb 2013

@ Bogotá - Colombia

Workshop on Applications of Wireless Technologies | (smr 2505)

Organizer(s): E. Pietrosemoli (ICTP), M. Zennaro (ICTP). Local Organizer: J.E. Garcia

Secretary: K. Mabilo

Cosponsor(s): Centro Internacional de Fisica (CIF) of Colombia

Support E-Mail: smr2505@ictp.it

Europe/Rome A 2D model of three-valued discrete-strain pseudospins S (r)=0, +1,-1 is studied in Monte Carlo simulations, under systematic temperature quenches, without extrinsic disorder [1]. The reduced model is from Landau minima of a continuum-strain free energy of the square-rectangle martensitic transition. The pseudospins interact via a power-law anisotropic potential obtained from the St Venant Compatibility constraint. The same procedure yields pseudospin models for other 2D and 3D transitions [2]. After a temperature quench, dilute martensitic seeds in an austenite background, induce sequential domain-wall phases of a 'vapour' of a martensite droplet in austenite; a 'liquid' of disordered martensite domain walls; and a ‘crystal’ of oriented-wall twins. The evolution is tracked through Temperature-Time –Transformation (TTT) curves, with time scales for conversion to martensite t_m (T); and Compatibility-driven domain-wall orientation, t_C (T). Depending on elastic constants, t_m (T) can either be thermally activated and slow, as in 'isothermal' martensites; or non-activated and explosive, as in 'athermal' martensites below a martensite start temperature ~ T_1. For quenching to above such a temperature, we find (generically) a delay tail, that rises towards a temperature T=T_4 > T_1. This is identified with the puzzling delay tail in t_m (T) found by Kakeshita [3]. The mean time shows glass-like Vogel-Fulcher behaviour, t_m ~ exp [ 1/( T_4 - T)], and distributions are log-normal [1]. The times are insensitive to the Hamiltonian energy scale E_0, and are attributed to entropy barriers that vanish/ diverge at T_1 and T_4. The conversion delays are from searches in Fourier space on constant-energy surfaces, for rare energy-lowering pathways. The 'vapour' phase structure-factor peak has to find pathways to distort and roll into a small anisotropic 'golf hole'; to be then guided by a 'funnel' into a 'liquid' phase; and finally symmetry-broken, to a 'crystal' phase. A time- dependent effective temperature re-equilibrates to the bath temperature. The entropic golf-hole, and energetic funnel, are concepts from protein folding [4]. [1] N. Shankaraiah, K.P.N. Murthy, T. Lookman and S.R .Shenoy, Europhys. Lett. 92, 36002 (2010); Phys. Rev. B 84, 064119 (2011) ; and unpublished. [2] S.R. Shenoy, T. Lookman and A. Saxena, Phys. Rev. B 82, (2010). [3] T. Kakeshita, T. Fukuda and T. Saburi, Scr. Mater. 34, 1 (1996); L. Mueller, U. Klemradt and T.R. Finlayson, Mater. Sci. Eng. A, 438, 122 (2006). [4] P.G. Wolynes, et al. Science 267, 1619 (1995); D.J. Bicout and A. Szabo, Protein Science 9, 452 (2000); N. Nakagawa, Phys. Rev. Lett.98, 128104 (2007). SISSA, Santorio Building, Room 5 (ground floor) ICTP pio@ictp.it

Seminar

4 Feb 2013

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Dr. Anton Mellit (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 14:30

Activity

18 Feb 2013 - 21 Feb 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

ADGLASS Winter School on Advanced Molecular Dynamics Simulations | (smr 2549)

Organizer(s): L. Colombi Ciacchi (University of Bremen). Local organizer: S. Scandolo (ICTP)

Laboratories: AGH Infolab.

Secretary: P. Krizmancic

Support E-Mail: smr2549@ictp.it

Europe/Rome The integration of various types of genomic data into predictive models of biological networks is one of the main challenges currently faced by computational biology. Constraint-based models in particular play a key role in the attempt to obtain a quantitative understanding of cellular metabolism at genome scale. In essence, their goal is to frame the metabolic capabilities of an organism based on minimal assumptions that describe the steady states of the underlying reaction network via suitable stoichiometric constraints, specifically mass balance and energy balance (i.e. thermodynamic feasibility). The implementation of these requirements to generate viable configurations of reaction fluxes and/or to test given flux profiles for thermodynamic feasibility can however prove to be computationally intensive. We propose here a fast and scalable stoichiometry-based method to explore the Gibbs energy landscape of a biochemical network at steady state. The method is applied to the problem of reconstructing the Gibbs energy landscape underlying metabolic activity in the human red blood cell, and to that of identifying and removing thermodynamically infeasible reaction cycles in the Escherichia coli metabolic network (iAF1260). In the former case, we produce consistent predictions for chemical potentials (or log-concentrations) of intracellular metabolites; in the latter, we identify a restricted set of loops (23 in total) in the periplasmic and cytoplasmic core as the origin of thermodynamic infeasibility in a large sample of flux configurations generated randomly and compatibly with the prior information available on reaction reversibility. ICTP ICTP pio@ictp.it

Seminar

19 Feb 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "A scalable algorithm to explore the Gibbs energy landscape of genome-scale metabolic networks"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Enzo MARINARI (University of Rome 'La Sapienza')

Seminar Start Time: 11:30

Europe/Rome Abstract. Very light axion-like particles (ALPs) with a two-photon vertex are predicted in many extensions of the Standard Model of particle physics. Depending on the actual value of their mass, ALPs can play an important role in cosmology, either as cold dark matter particles or as quintessential dark energy. The coupling with photons allows for ALP-photon mixing in external electromagnetic fields. This effect is exploited for direct searches of ALPs in laboratory experiments. The two-photon vertex would also induce the mixing with ALPs for photons emitted by distant astrophysical sources, and propagating in the large-scale cosmic magnetic fields. Indeed, different astrophysical puzzles would be naturally solved by conversions of cosmic photons into ALPs. Motivated by these intriguing hints, I will discuss how current and upcoming astrophysical experiments, ranging from the cosmic microwave background to the high-energy gamma-rays, could probe the elusive ALPs in a region of their parameter space not accessible by laboratory experiments. ICTP ICTP pio@ictp.it

Seminar

19 Feb 2013

25 Feb 2013 - 1 Mar 2013

@ Trieste - Italy

Earth System Physics

College on Soil Physics - 30th Anniversary (1983-2013) | (smr 2444)

Room: Adriatico Guest House Giambiagi Lecture Hall

Organizer(s): D. Gabriels (Belgium), D. Nielsen (USA), I. Pla Sentis (Spain), E. Skidmore (USA). Local Organizer: GC. Ghirardi, F. Giorgi

Laboratories: AGH (Infolab.)

Secretary: S. Henningsen

Support E-Mail: smr2444@ictp.it

Europe/Rome I will discuss finite volume matrix elements of local operators in integrable quantum field theories and present a conjecture relating finite and infinite volume form factors in the most general setting, i.e. including the case of form factors containing disconnected pieces in the presence of non-diagonal scattering. Specializing to the sine-Gordon model, finite volume multi-soliton form factors are compared to numerical data coming from a numerical renormalization group calculation in the truncated conformal space. I find excellent agreement between the two approaches, thus verifying both bootstrap for multi-soliton form factors and the theory linking finite and infinite volume matrix elements. Evaluation of the nontrivial multi-soliton form factors is achieved by a newly developed regularization scheme. SISSA, Santorio Building, Room 128 (1st Floor) ICTP pio@ictp.it

Seminar

26 Feb 2013

Speaker(s): Riccardo FERRANDO (Universita' degli Studi di Genova )

Seminar Start Time: 15:30

Seminar

28 Feb 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

Dark matter detection in mass degenerate scenarios

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Alejandro IBARRA (Technische Universitat Munchen, Germany)

Seminar Start Time: 16:30

Hosted Activity

5 Mar 2013 - 6 Mar 2013

@ Trieste - Italy

WAAS Trieste Forum: Impact of Science and Technology on Society and Economy | (smr H328)

Room: Adriatico Guest House Giambiagi Lecture Hall

Organizer(s): Prof. D. Romeo

Europe/Rome 2D physical systems with degenerate grounds states and excited particle states obeying exotic statistics ('anyons') provide a surprisingly effective and aesthetically appealing arena for performing quantum computation. Topological quantum computation is a rapidly expanding research area focused on the physical realisation of a quantum computer that is intrinsically fault-tolerant and decoherence free. The theoretical background needed for dealing with 'topological' systems and materials will be presented in an pedagogical way. ICTP ICTP pio@ictp.it

Seminar

5 Mar 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Computing with anyons"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Annalisa MARZUOLI (University of Pavia )

Seminar Start Time: 11:30

Europe/Rome Abstract: We solve the semiclassical Einstein equations governing the dynamics of linear metric perturbations (of scalar, vector and tensor type) around de Sitter spacetime including the vacuum polarization effects of conformal matter fields. An order reduction method is used to eliminate the spurious solutions associated with higher order derivatives. Our exact (nonperturbative) solutions show that de Sitter spacetime is stable and a large time attractor. This extends some of the existing â€œno-hairâ€ results for de Sitter spacetime. ICTP ICTP pio@ictp.it

Seminar

5 Mar 2013

12 Mar 2013 - 15 Mar 2013

@ Trieste - Italy

UNILHC Science and Communication Course | (smr H334)

Organizer(s): SISSA Medialab

Europe/Rome The equilibrium and nonequilibrium quantum evolution of extended observables and entanglement properties are discussed in systems of Fermi gases/liquids of any dimension. In particular I focus on the entanglement entropy of extended space regions at equilibrium and off-equilibrium during the expansion after the drop of a trapping potential, which generally shows multiplicative logarithmic corrections to the leading power-law behaviors, analogously to the logarithmic corrections to the area law in lattice fermions. SISSA, Santorio Building, Room 128 (1st Floor) ICTP pio@ictp.it

Seminar

12 Mar 2013

@ SISSA, Santorio Building, Room 128 (1st Floor)

Joint ICTP/SISSA Statistical Physics seminar: "Equilibrium and nonequilibrium entanglement properties in Fermi gases/liquids"

Speaker(s): Ettore VICARI (University of Pisa )

Seminar Start Time: 11:00

Europe/Rome The origin of the pseudogap is widely debated for cuprate superconductors. The main controversy concerns whether superconductivity and the pseudogap phase are competing with each other or are manifestations of the same phenomenon. In the latter case, pairing fluctuations would extend above the critical temperature (Tc) the effects of the pairing gap below Tc [1]. A contribution to settle this controversy can be obtained by ultracold fermions, which are free of the structural complications of cuprates and where only pairing fluctuations are present above Tc. In these systems, the inter-particle attraction can be varied by Fano-Feshbach resonances as to amplify the effects of pairing fluctuations. In this context, wave-vector resolved radio frequency spectroscopy data for an ultracold trapped Fermi gas are reported for several couplings at Tc, and analyzed by a pairing-fluctuation theory. We show that the non-Fermi-liquid behavior associated with the presence of a pseudogap coexists with a robust remnant Fermi surface over a wide coupling range, which sets the boundary of the pseudogap phase [2,3,4]. Moreover, the properties of the pseudogap phase obtained within the t-matrix approach are compared with the outcomes of recent quantum Monte Carlo (QMC) ab initio simulations [5,6]. Once the pseudogap has been characterized in ultracold fermions, we compare the temperature dependence of the spectral intensity suppression obtained within our theory with the one measured in cuprates by angular resolved photoemission spectroscopy (ARPES) [7]. References [1] A. Perali, P. Pieri, G.C. Strinati, and C. Castellani, Phys. Rev. B 66, 024510 (2002). [2] J.P. Gaebler, J.T. Stewart, T.E. Drake, D.S. Jin, A. Perali, P. Pieri, and G. C. Strinati, Nature Physics 6, 569 (2010). [3] A. Perali, F. Palestini, P. Pieri, G.C. Strinati, J. T. Stewart, J. P. Gaebler, T. E. Drake, and D. S. Jin, Phys. Rev. Lett. 106, 060402 (2011). [4] F. Palestini, A. Perali, P. Pieri, and G.C. Strinati, Phys. Rev. B 85, 024517 (2012). [5] P. Magierski, G. Wlazlowski and A. Bulgac, Phys. Rev. Lett. 107, 145304 (2011). [6] G. Wlazlowski, P. Magierski, J. E. Drut, A. Bulgac, and K. J. Roche, Phys. Rev. Lett. 110, 090401 (2013). [7] T. Kondo, Y. Hamaya, A. D. Palczewski, T. Takeuchi, J. S. Wen, Z. J. Xu, G. Gu, J. Schmalian & A. Kaminski, Nature Physics 7, 21 (2011). ICTP ICTP pio@ictp.it

Seminar

14 Mar 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Pseudogap in ultracold Fermi gases: Theory, experiments, and QMC simulations"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Andrea PERALI (University of Camerino)

Seminar Start Time: 11:30

Europe/Rome TOPICS: • Cosmology • AdS/CFT and AdS/CMP • Black Holes • M5 Brane Theory • Supersymmetric Localization and Applications • Vector Chern-Simons Theories and Higher Spins • LHC and Physics Beyond the Standard Model LECTURERS include: J. GOMIS (Perimeter Institute) C. GROJEAN (CERN) S. HARTNOLL (Stanford University) S. KACHRU (Stanford University) S. KIM (Seoul National U. & Perimeter Institute) J.M. MALDACENA (IAS Princeton) S. MINWALLA (Tata Institute) J. PENEDONES (Porto University) E. SILVERSTEIN (Stanford University) The Aim of the activity is to provide pedagogical treatment of these subjects in the form of a series of lectures by individual speakers. The activity is intended for theoretical physicists or mathematicians with knowledge of quantum field theory, general relativity and string theory. Trieste - Italy ICTP pio@ictp.it

Activity

18 Mar 2013 - 26 Mar 2013

@ Trieste - Italy

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Spring School on Superstring Theory and Related Topics | (smr 2448)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): E. Gava (INFN), S. Minwalla (Tata Institute), K.S. Narain (ICTP), S. Randjbar-Daemi (ICTP), E.M. Silverstein (Stanford University)

Secretary: N. van Buuren

Collaborations: the Asia Pacific Center for Theoretical Physics (APCTP), the International School for Advanced Studies (SISSA) and the Italian Institute for Nuclear Physics (INFN)

Support E-Mail: smr2448@ictp.it

Europe/Rome The study of an almost Ricci soliton was introduced in a recent paper due to Pigola, Rigoli, Rimoldi and Setti. This structure represents a generalization to Einstein metrics and Ricci soliton, they appear as special solutions of the Ricci flow. In this seminar we shall talk about two results. The first treats of the characterization of compact almost Ricci solitons , more precisely, in this work we find some structure equations for almost Ricci solitons which generalize the equivalent for Ricci solitons. As a consequence of these equations we derive an integral formula for the compact case which enables to show that a compact nontrivial almost Ricci soliton is isometric to a sphere, provided either it has constant scalar curvature or its associated vector eld is conformal. Next, we prove that any compact almost Ricci soliton with constant scalar curvature is isometric to a Euclidean sphere. As a consequence we obtain that every compact almost Ricci soliton with constant scalar curvature is gradient. ICTP ICTP pio@ictp.it

Seminar

18 Mar 2013

@ ICTP

Mathematics

Some characterizations for compact almost Ricci solitons

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Ernani de Sousa Ribeiro Jr. (Universidade do Ceara', Brazil)

Support E-Mail: math@ictp.it

Seminar Start Time: 14:30

Europe/Rome Quantum many-body physics has traditionally been dominated by detailed investigations of equilibrium properties and low-energy excitations. In the last decade or so, motivated by novel experimental possibilities such as cold atoms, the study of quantum matter far from equilibrium has emerged as an important and exciting new field. I will start with a selection of new questions and phenomena that have appeared in the context of non-equilibrium evolution in isolated systems. I will end by focusing on a specific example, namely, the dynamics of composite objects in lattice systems. such as repulsively bound pairs, triplets and clusters. ICTP ICTP pio@ictp.it

Seminar

19 Mar 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Non-equilibrium dynamics in isolated quantum systems"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Masud HAQUE (Max-Planck Institute for Physics of Complex Systems, Dresden )

Seminar Start Time: 11:30

Europe/Rome Abstract: We explore the dynamics of metric perturbations (gravitational waves) on the cosmological background in the theory with higher derivatives and semiclassical non-local corrections coming from massless conformal fields. It is shown, by means of analytical and numerical methods that there are no growing modes until the background has enegies of Planck order of magnitude. This result means, also, that there are good chances to construct renormalizable theory of quantum gravity which is unitary for the energies below Planck scale. ICTP ICTP pio@ictp.it

Seminar

19 Mar 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Gravitational waves and new hope for Quantum Gravity

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Ilya L. SHAPIRO (Universidade Federal de Juiz de Fora, MG, Brazil)

Seminar Start Time: 16:30

Europe/Rome For sensory networks, we determine the rate with which they acquire information about the changing external conditions. Comparing this rate with the thermodynamic entropy production that quantifies the cost of maintaining the network, we find that there is no universal bound restricting the rate of obtaining information to be less than this thermodynamic cost. These results are obtained within a general bipartite model consisting of a stochastically changing environment that affects the instantaneous transition rates within the system. Moreover, they are illustrated with a simple four-states model motivated by cellular sensing. On the technical level, we obtain an upper bound on the rate of mutual information analytically and calculate this rate with a numerical method that estimates the entropy of a time-series generated with a simulation. ICTP ICTP pio@ictp.it

Seminar

20 Mar 2013

@ ICTP

Informal seminar on Statistical Physics: "Information-theoretic vs. thermodynamic entropy production in autonomous sensory networks"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Andre CARDOSO BARATO (University of Stuttgart )

Seminar Start Time: 15:00

Europe/Rome Abstract: There are three types - three "flavors" of neutrinos: electron, muon and tau. Enormous progress in neutrino physics was related to the discoveries of flavor oscillations and flavor conversion of neutrinos in matter. These discoveries allowed us to detrmine the neutrino mass parameters and mixing and to elaborate neutrino "flavor optics". I will describe recent developments in the field which include measurements of the 1-3 mixing, searches for new (flavorless) neutrinos, attempts to understand the origins of neutrino mass. I will outline possible future progress in the field. ICTP ICTP pio@ictp.it

Colloquium

20 Mar 2013

@ ICTP

Neutrinos: Flavors of the Invisible

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Alexei SMIRNOV (ICTP)

Colloquium Start Time: 16:30

Hosted Activity

21 Mar 2013 - 22 Mar 2013

@ Trieste - Italy

Nuove direzioni di ricerca in Geometria Ipercomplessa | (smr H329)

Organizer(s): Prof. Vlacci

Europe/Rome Recent experimental progress in the physics of ultracold atomic gases has revived the interest in the behavior of thermally isolated quantum statistical systems, especially after sudden changes (quenches) of their control parameters. Considering the quench as a thermodynamic transformation, it is natural to focus on the irreversible work done on the system, which is characterized by a certain probability distribution. By studying its large deviations, i.e., rare fluctuations of the work per unit volume, we establish a connection with the physics of a classical system confined in a film geometry. If the system is quenched close to a (quantum) critical point, both the edge singularity and the large deviations of the irreversible work acquire universal features dictated by the critical Casimir effect in the corresponding classical system. In systems of bosons, the statistics of the work may additionally display a transition which is analogous to the equilibrium Bose-Einstein condensation. ICTP ICTP pio@ictp.it

Seminar

21 Mar 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Irreversible work, large deviations, critical Casimir effect, and universality in quantum quenches"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Andrea GAMBASSI (SISSA)

Seminar Start Time: 11:30

Activity

25 Mar 2013 - 27 Mar 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

38th Conference of the Middle European Cooperation in Statistical Physics - MECO38 | (smr 2449)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): A. GAMBASSI (SISSA), M. MARSILI, M. MUELLER, and A. SCARDICCHIO (ICTP).

Secretary: M. de Comelli

Cosponsor(s): CEI-Central European Initiative and EPL-Europhysics Letters, and in collaboration with the Italian Ministry of Foreign Affairs

Support E-Mail: smr2449@ictp.it

Europe/Rome Abstract: Gauge theories, such as the one describing strong interactions, contain string-like excitations. String theory describes the quantum dynamics of strings and it reduces to gravity at long distances. The simplest versions of string theory live in a ten dimensional spacetime. We will explain how these ten dimensional strings are intimately connected to the strings that appear in four dimensional gauge theories. The four dimensional gauge theory gives rise to a gravitational theory in a higher dimensional curved spacetime. The gravitational theory is simple to analyze when the four dimensional theory is strongly interacting. This provides a simple way of studying strongly coupled phenomena en quantum field theories. In addition, it can be used to describe black holes in a fully quantum mechanical fashion. ICTP ICTP pio@ictp.it

Colloquium

25 Mar 2013

@ ICTP

Gauge theories, strings and gravity

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Juan MALDACENA (IAS, Princeton)

Colloquium Start Time: 16:30

Colloquium

26 Mar 2013

@ ICTP

Network Dynamics in Collective Motion

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Kastler Lecture Hall

Speaker(s): Tamas VICSEK (Eotvos University, Hungary)

Colloquium Start Time: 14:15

Seminar

26 Mar 2013

@ ICTP

Mathematics

Free rank of symmetry of manifolds

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Mahender Singh (IISER, Mohali, India)

Support E-Mail: math@ictp.it

Seminar Start Time: 14:30

Colloquium

26 Mar 2013

@ ICTP

Statistical Properties of Entanglement in Large Quantum Systems

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Kastler Lecture Hall

Speaker(s): Saverio PASCAZIO (Univesity of Bari)

Colloquium Start Time: 15:00

Europe/Rome Abstract: Several unexplained results from neutrino oscillation experiments and from cosmology have sparked renewed interest in extensions of the Standard Model containing light sterile neutrinos. In this talk, we first discuss the status of such models, we present results from a global fit to neutrino oscillation data, and we discuss the tension between different data sets. In the second part of the talk, we explore the possible implications that the existence of sterile neutrinos could have for dark matter searches. In particular, resonantly enhanced active-to-sterile oscillations can weaken limits on dark matter annihilation in the Sun. On the direct detection side, we show that models in which sterile neutrinos form part of a larger hidden sector can lead to interesting new signatures of solar sterile neutrinos scattering on electrons or nuclei. On the one hand, these signatures provide a new application for dark matter detectors, on the other hand they are not always easy to distinguish from dark matter scattering signals. ICTP ICTP pio@ictp.it

Seminar

26 Mar 2013

28 Mar 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Energy loss of heavy quarks in a strongly coupled anisotropic plasma from gauge-string duality

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Kazem BITAGHSIR FADAFAN (Shahrood University of Technology, Iran)

Seminar Start Time: 16:30

Europe/Rome Founded over a century ago, statistical mechanics (SM) for systems in thermal equilibrium has been so successful that, nowadays, it forms part of our physics core curriculum. On the other hand, most of "real life" phenomena occur under non-equilibrium conditions. Unfortunately, statistical mechanics for such systems is far from being well established. The goal of understanding complex collective behavior from simple microscopic rules (of evolution, say) remains elusive. As an example of the difficulties we face, consider predicting the existence of a tree from an appropriate collection of H,C,O,N,... atoms! Over the last two decades, an increasing number of condensed matter theorists are devoting their efforts to this frontier. After a brief summary of the crucial differences between text-book equilibrium SM and non-equilibrium SM, I will give a bird's-eye view of some key issues, ranging from the "fundamental" to (a small set of) the "applied." The methods used also span a wide spectrum, from "easy" computer simulations to sophisticated field theoretic techniques. These will be illustrated in the context of an overview of our work, as well as a simple Ising model coupled to two thermal baths. SISSA, Santorio Building, Room 5 (ground floor) ICTP pio@ictp.it

Seminar

3 Apr 2013

@ SISSA, Santorio Building, Room 5 (ground floor)

Special seminar on Statistical Physics: "Non-equilibrium statistical mechanics: A growing frontier of 'pure and applied' theoretical physics"

Speaker(s): Royce K.-P. ZIA (Virginia Polytechnic Institute, Blacksburg )

Seminar Start Time: 15:00

Europe/Rome The hard-disk model has exerted outstanding influence on computational physics and statistical mechanics. Decades ago, hard disks were the first system to be studied by Markov-chain Monte Carlo methods and by molecular dynamics. It was in hard disks, through numerical simulations, that a two-dimensional melting transition was first seen to occur even though such systems cannot develop long-range crystalline order. Analysis of the system was made difficult by the absence of adequate simulation methods. In recent years, we have developed a number of powerful Monte Carlo algorithms for hard disks and related systems. I will in particular show how the powerful event-chain Monte Carlo algorithm has allowed us to show that hard disks melt with a first-order transition from the liquid to the hexatic and a continuous transition from the hexatic to the solid. I will finish with discussions on the general theory of two-dimensional melting and on the generalizations of the event-chain algorithm. ICTP ICTP pio@ictp.it

Seminar

4 Apr 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Melting transition of hard disks: New algorithms, new insights "

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Werner KRAUTH (Ecole Normale Superieure, Paris)

Seminar Start Time: 12:30

Activity

8 Apr 2013 - 19 Apr 2013

@ Trieste - Italy

International School on Nuclear Security | (smr 2446)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): D. Lambert (IAEA) Local Organizer: C. Tuniz (ICTP)

Secretary: F. Delconte

Cosponsor(s): the Italian Ministry of Foreign Affairs; the International Atomic Energy Agency (IAEA)

Support E-Mail: smr2446@ictp.it

Activity

8 Apr 2013 - 12 Apr 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

Workshop on Interferometry and Interactions in Non-equilibrium Meso- and Nano-systems | (smr 2451)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): Y. Gefen (Israel), S. Ludwig (Germany), C. Marcus (Denmark), F. von Oppen (Germany). ICTP Local Organizer: M. Kiselev

Secretary: D. Sauleek

Cosponsor(s): Center for NanoScience (CeNS)andNanosystem Initiative Munich (NIM)

Support E-Mail: smr2451@ictp.it

Hosted Activity

8 Apr 2013 - 12 Apr 2013

@ Trieste - Italy

Theoretical Course "Mouse Genetics; Models for Human Diseases" | (smr H323)

Hosted Activity

13 Apr 2013

@ Trieste - Italy

NordEst4x4 Offroad Club Trieste - Humanitarian Mission in Morocco, February 2013 | (smr H342)

Organizer(s): V. Stasi

Activity

15 Apr 2013 - 26 Apr 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

Advanced School on Synchrotron Techniques in Environmental Scientific Projects | (smr 2452)

Room: Leonardo da Vinci Building Euler Lecture Hall

Organizer(s): H. Hoorani (SESAME), M. Kiskinova (Elettra). ICTP Local Organizer: J. Niemela

Secretary: S. Radosic

Support E-Mail: smr2452@ictp.it

Activity

15 Apr 2013 - 26 Apr 2013

@ Trieste - Italy

Earth System Physics

School on Modelling Tools and Capacity Building in Climate and Public Health | (smr 2453)

Organizer(s): A. Tompkins, R. Lowe, M. Sa Carvalho, G. Mantilla. ICTP Local Organizers: A. Tompkins, F. Colon Gonzalez

Laboratories: AGH (Infolab.)

Secretary: G. De Meo

Support E-Mail: smr2453@ictp.it

Europe/Rome I will discuss the fundamental equivalence between thermodynamic inefficiency, measured by dissipation, and information processing inefficiency. The dynamics of any system responding to a stochastic environmental signal can be interpreted as computing an implicit model of the driving signal. The system’s state retains information about past environmental fluctuations, and a fraction of this information is predictive of future fluctuations. The remaining nonpredictive information reflects model complexity that does not improve predictive power, and thus represents the inefficiency of the model. We find that instantaneous nonpredictive information: 1) is proportional to the work dissipated due to environmental change; 2) provides a lower bound on the total dissipated work when summed over the length of a driving protocol; 3) augments the lower bound on heat generated due to information erasure (Landauer's principle). Our results hold far from thermodynamic equilibrium and are thus applicable to a wide range of systems, including biomolecular machines, and potential future nano computing devices. These results highlight a profound connection between the effective use of information and efficient thermodynamic operation: any system constructed to keep memory about its environment, and to operate with maximal energetic efficiency, has to be predictive. http://prl.aps.org/abstract/PRL/v109/i12/e120604 SISSA, Santorio Building, Room 128 (1st Floor) ICTP pio@ictp.it

Seminar

16 Apr 2013

@ SISSA, Santorio Building, Room 128 (1st Floor)

Joint ICTP/SISSA Statistical Physics seminar: "Thermodynamics of prediction"

Speaker(s): Susanna STILL (University of Hawaii at Manoa )

Seminar Start Time: 12:00

Europe/Rome Non-linear sound is an extreme phenomenon typically observed in solids after violent explosions. But granular media are different. Right when they unjam, these fragile and disordered solids exhibit vanishing elastic moduli and sound speed, so that even tiny mechanical perturbations form supersonic shocks. Here, we perform simulations in which two-dimensional jammed granular packings are continuously compressed, and demonstrate that the resulting excitations are strongly nonlinear shocks, rather than linear waves. We capture the full dependence of the shock speed on pressure and compression speed by a surprisingly simple analytical model. We also treat shear shocks within a simplified viscoelastic model of nearly-isostatic random networks comprised of harmonic springs. In this case, anharmonicity does not originate locally from nonlinear interactions between particles, as in granular media; instead, it emerges from the global architecture of the network. As a result, the diverging width of the shear shocks bears a nonlinear signature of the diverging isostatic length associated with the loss of rigidity in these floppy networks. SISSA, Santorio Building, Room 4 (ground floor) ICTP pio@ictp.it

Seminar

17 Apr 2013

@ SISSA, Santorio Building, Room 4 (ground floor)

Joint ICTP/SISSA Applied Mathematics/Statistical Mechanics seminar: "Shocks in fragile matter"

Speaker(s): Vincenzo VITELLI (Instituut Lorentz, Leiden)

Seminar Start Time: 14:00

Seminar

17 Apr 2013

@ SISSA - Room 128

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Joint ICTP-SISSA String Seminars: Metastable spinning strings

Speaker(s): Niklas BEISERT (ETHZ, Zurich)

Seminar Start Time: 15:30

Seminar

17 Apr 2013

@ SISSA - Room 128

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Joint ICTP-SISSA String Seminars: Covariant Non-Commutative De Sitter spaces

Organizer(s): Director: A.G. Karydas (IAEA, Vienna), Co-Directors: B. Beckhoff (PTB, Berlin), D. Eichert (ELETTRA, Trieste), Local Organizer: J. Niemela (ICTP, Trieste)

Secretary: E. Brancaccio

Support E-Mail: smr2454@ictp.it

Europe/Rome Abstract. In this talk, I will describe how to test composite Higgs models at LHC by searching for top partners, in a simple and sistematic way. In the first part, I will show how to build effective lagrangians capturing the relevant features with a small number of parameters. In the second part, I will explore some of the rich phenomenology and use the experimental data to derive bounds on top partners. I will conclude by highligthing the open questions and the room for improvement. ICTP ICTP pio@ictp.it

Seminar

22 Apr 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Top Partners Hunting

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Andrea De SIMONE (CERN, Switzerland)

Seminar Start Time: 17:30

Europe/Rome In this talk I will review general non-adiabatic theories of two- and three- level crossings subject to fast and slow Gaussian noise. The applications to recent experiments on Landau - Zener interferometry in double/triple quantum dots and superconducting qubits will be discussed. ICTP ICTP pio@ictp.it

Seminar

23 Apr 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Landau - Zener interferometry with double and triple quantum dots"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Mikhail KISELEV (ICTP)

Seminar Start Time: 12:30

Europe/Rome Abstract. Using holography we study the imaginary of the heavy quark anti-quark (dipole) potential in the anisotropic plasma at finite temperature. The anisotropic plasma is a deformation of N=4 SYM theory by adding a Theta-term depending on the anisotropy direction to the action. From gravity side the deformation can be thought as generated from a back-reacting number of D7 branes wrapping the internal 5-sphere and two of the spatial directions (transverse directions) in the space-time. The imaginary part of the potential creates a thermal width and by comparing the results with isotropic case we show that the thermal width in the anisotropic plasma is larger than the isotropic case. The thermal width is a function of the angle between the dipole and anisotropy direction and we show that the thermal width in anisotropy direction is larger than the thermal width in transverse direction. ICTP ICTP pio@ictp.it

Seminar

24 Apr 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Thermal width of heavy quarkonia in anisotropic Quark Gluon Plasma from Holography

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Hesam SOLTANPANAHI SARABI (University of Witwatersrand, South Africa)

Seminar Start Time: 17:30

Europe/Rome We experimentally study the transport process of ultracold fermionic atoms through a mesoscopic, quasi two-dimensional channel connecting macroscopic reservoirs. By observing the current response to a bias applied between the reservoirs, we directly access the resistance of the channel in a manner analogous to a solid state conduction measurement. The resistance is further controlled by a gate potential reducing the atomic density in the channel, like in a field effect transistor. In this setup, we study the flow of a strongly interacting Fermi gas, and observe a striking drop of resistance with increasing density in the channel, as expected at the onset of superfluidity. The resistance is compared to that of an ideal Fermi gas in the same geometry, which shows an order of magnitude larger resistance, originating from the contact resistance between the channel and the reservoirs. We extended this investigation to disordered superfluids and provide evidences for a disorder-induced breakdown of superfluidity. ICTP ICTP pio@ictp.it

Seminar

25 Apr 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Conduction properties of ultracold Fermions"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Jean-Philippe BRANTUT (E.T.H. Zürich)

Seminar Start Time: 12:30

Europe/Rome ASSOCIATED ACTIVITIES: The workshop will be run in collaboration with the preceding School on Modelling Tools and Capacity Building in Climate and Public Health (15 April - 1 May, smr2453). Participants can also apply to attend this earlier School. Attendance at both workshops is not mandatory, each workshop is designed to be self-contained. However, during the first three days, the School and this Workshop will integrate by focusing the lectures on topics of common interest. The Workshop is co-sponsored by IUGG Trieste - Italy ICTP pio@ictp.it

Activity

29 Apr 2013 - 10 May 2013

@ Trieste - Italy

Earth System Physics

Workshop on Mathematical Models of Climate Variability, Environmental Change and Infectious Diseases | (smr 2450)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): A.P. Dobson (USA), G.A. Canziani (Argentina), G.A. Leo (USA), M. Pascual (USA). ICTP Local Organizers: A. Tompkins, M. Marsili

Laboratories: MB Lab

Secretary: G. De Meo

Support E-Mail: smr2450@ictp.it

Hosted Activity

29 Apr 2013 - 1 May 2013

@ Trieste - Italy

EU FP7 Healthy Futures Partners Meeting | (smr H343)

Organizer(s): A. Tompkins (ICTP)

Secretary: G. De Meo

Activity

29 Apr 2013

@ Trieste - Italy

5th SESAME Training Advisory Committee Meeting | (smr 2564)

Organizer(s): J. Niemela

Secretary: Z. Makkawi

Support E-Mail: smr2564@ictp.it

Activity

29 Apr 2013 - 3 May 2013

@ Trieste - Italy

Joint ICTP-TWAS Workshop on Portable X-ray Analytical Instruments for Cultural Heritage | (smr 2455)

Room: Adriatico Guest House Giambiagi Lecture Hall

Organizer(s): C. Tuniz (ICTP), L. Mancini (Sincrotrone Trieste). ICTP Local Organizers: M.L. Crespo, A. Cicuttin

Laboratories: MLab

Secretary: A. Lusenti

Cosponsor(s): Elettra-Sincrotrone Trieste, Regione Autonoma Friuli Venezia Giulia, TWAS (the Academy of Sciences for the Developing World)

Support E-Mail: smr2455@ictp.it

Europe/Rome Abstract: This talk will is about work with Ben McReynolds and Matt Stover on variations of the higher Lehmer conjecture of F. Rodriguez Villegas. These conjectures concern the unit groups of algebraic number fields. I will make a connection between these conjectures and the Cheeger constants of certain flat manifolds which are naturally related to units. Cheeger constants measure the size of the minimal codimension one submanifold which cuts the original manifold into two disjoint pieces of equal volume. ICTP ICTP pio@ictp.it

Seminar

30 Apr 2013

@ ICTP

Mathematics

The higher Lehmer conjecture of F. Rodriguez Villegas

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Ted Chinburg (University of Pennsylvania)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Seminar

30 Apr 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

Fundamental Physics with Optically Levitated Dielectrics

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Asimina ARVANITAKI (Stanford University, USA)

Seminar Start Time: 17:30

Europe/Rome GAMMA-400 is a Russian-based space mission devoted to the study of the Universe at the highest gamma-ray and electron energies detectable by space satellites. The main goal is search of indications of Dark Matter. Other items concern the study of high energy cosmic –ray electrons and nuclei. This unique combination will put GAMMA-400 at the forefront of research in the next decade. Trieste - Italy ICTP pio@ictp.it

Hosted Activity

2 May 2013 - 4 May 2013

@ Trieste - Italy

Science with Gamma-400 Workshop | (smr H336)

Room: Adriatico Guest House Kastler Lecture Hall

Director(s) & organizer(s): Scientific Advisory Committee: <br /> A. Galper, Y. Yurkin, N.Topchiev, G. Barbiellini, P. Spillantini, M. Tavani, A.Vacchi

Local organizer(s): Mirko Boezio, Valter Bonvicini, Francesco Longo, Emiliano Mocchiutti, Ritabrata Sarkar

Collaborations: International Centre for Theoretical Physics <br />Fondazione Internazionale Trieste per il Progresso e la Liberta' delle Scienze

Europe/Rome We discuss the formation of bound states made of two interacting atoms moving in a one dimensional (1D) quasi-periodic optical lattice. The underlying hamiltonian is the Aubry-André model with additional on-site interactions. We derive the quantum phase diagram for localization of both attractively and repulsively bound pairs. We calculate the pair binding energy and show analytically that its behavior as a function of the interaction strength depends crucially on the nature -extended, multifractal, localized- of the single-particle atomic states. Experimental implications of our results are discussed. Ref: G. Dufour, G. Orso, Phys. Rev. Lett. 109, 155306 (2012) ICTP ICTP pio@ictp.it

Seminar

2 May 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Localization of bound states in quasi-periodic optical lattices"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Giuliano ORSO (Universite Paris Diderot - Paris 7)

Seminar Start Time: 12:30

Europe/Rome Abstract: We address the problem of the conditions under which an endomorphism(non-invertible map) having a dense orbit ensures that a sufficiently close perturbed map also exhibits a dense orbit. In this context, we give sufficient conditions, which cover a large class of examples, for endomorphisms on the n-dimensional torus to be robustly transitive: the endomorphism must be volume expanding and any large connected arc must contain a point such that its future orbit belongs to an expanding region. (Joint work with E. Pujals) If we have enough time, I will show some ergodic properties for a generic subset of this class of maps. More concretely, the existence of interesting measures such as ergodic expanding invariant measures with full support and exhibiting exponential decay of correlations. (Joint work with V. Pinheiro and P.Varandas) Some examples will be shown. ICTP ICTP pio@ictp.it

Seminar

2 May 2013

@ ICTP

Mathematics

Robust Transitivity for Endomorphisms

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Cristina Lizana Araneda (PUC, Rio de Janeiro, Brazil)

Support E-Mail: math@ictp.it

Seminar Start Time: 16:00

Europe/Rome This is a joint seminar between the Condensed Matter (Statistical Physics) and Applied Physics Sections. You will be especially welcome if you are visiting the Centre, or another Trieste Institute, as Associate Members, TRIL Fellows, or if you are from Affiliated Institutes in the various areas of this stimulating interdisciplinary event. The summary of the seminar is available at: http://www.ictp.it/~chelaf/ss317.html ICTP ICTP pio@ictp.it

Seminar

3 May 2013

@ ICTP

Condensed Matter and Statistical Physics

Synchronization as a survival strategy of biological systems- from cellular slime mold to crystal growth

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

First International Workshop on "Low-cost 3D Printing for Science, Education and Sustainable Development" | (smr 2547)

Room: GALILEO INFOLAB.

Organizer(s): E. Canessa, C. Fonda and M. Zennaro

Secretary: L. Iannitti

Collaborations: co-sponsor: the Academy of Sciences for the Developing World (TWAS)

Cosponsor(s): the Academy of Sciences for the Developing World (TWAS)

Support E-Mail: smr2547@ictp.it

Activity

6 May 2013 - 17 May 2013

@ Trieste - Italy

Earth System Physics

2nd Workshop on Water Resources in Developing Countries: Planning and Management in a Climate Change Scenario | (smr 2457)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): E. Coppola (ICTP), S. Sorooshian (Un. of California, USA), L. Mariotti (ICTP), M. Verdecchia (Univ. l'Aquila, Italy)

Laboratories: AGH (Infolab.)

Secretary: S. Henningsen

Cosponsor(s): IUGG - International Union of Geodesy and Geophysics

Support E-Mail: smr2457@ictp.it

Europe/Rome Colonies of motile microorganisms, the cytoskeleton and its components, cells and tissues have much in common with soft condensed matter systems (i.e. liquid crystals, amphiphiles, colloids etc.), but also exhibit behaviors that do not appear in inanimate matter and that are crucial for biological functions. These unique properties arise when the constituent particles are active: they consume energy from internal and external sources and dissipate it by moving through the medium they inhabit. In this talk I will give a brief introduction to the notion of "active matter" and present some recent results on the hydrodynamics of active nematics suspensions in two dimensions. SISSA, Santorio Building room 128 (1st floor) ICTP pio@ictp.it

Seminar

7 May 2013

@ SISSA, Santorio Building room 128 (1st floor)

Joint ICTP/SISSA Statistical Physics seminar: “Active fluids: From Liquid Crystals to Living Systems”

Speaker(s): L. GIOMI (SISSA)

Seminar Start Time: 12:00

Europe/Rome In this seminar we survey discrete time, multi period, sequential investment strategies for financial markets. Under memoryless assumption on the underlying process generating the asset prices the Best Constantly Rebalanced Portfolio is studied, called log-optimal portfolio, which achieves the maximal asymptotic average growth rate. For generalized dynamic portfolio selection, when asset prices are generated by a stationary and ergodic process, universally consistent empirical methods are shown, using current principles of nonparametric regression estimation and machine learning algorithms. The empirical performance of the methods are illustrated for NYSE data. ICTP ICTP pio@ictp.it

Seminar

7 May 2013

@ ICTP

Informal seminar on Statistical Physics: "Empirical portfolio selection"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Denardo Lecture Hall

Speaker(s): Laszlo GYORFI (Budapest University of Technology and Economics )

Seminar Start Time: 15:30

Seminar

7 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

Three Types of Dark Matter and Their Unification

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Ernest MA (University of California, Riverside, USA)

Seminar Start Time: 17:30

Seminar

8 May 2013

@ ICTP

Mathematics

Complex symmetric composition operators

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Waleed Noor (Abdus Salam School of Mathematical Sciences, Lahore)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Europe/Rome A substantial magnetodielectric effect is usually an indication of coupled magnetic and elastic order, such as is found in the multiferroics. However, here I will show that magnetism is not necessary to produce either a magnetoresistance or a magnetocapacitance when the material is inhomogeneous. From exact calculations and numerical simulations of metal-dielectric composites, I find a characteristic dielectric resonance that sensitively depends on magnetic field. I will discuss how this behaviour has already been observed experimentally in some materials. ICTP ICTP pio@ictp.it

Seminar

9 May 2013

@ ICTP

Seminar on Disorder and strong electron correlations: “Magnetotransport in Non-magnetic Inhomogeneous Materials”

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Meera M. PARISH (London Centre for Nanotechnology)

Seminar Start Time: 12:30

Europe/Rome (This is the second of a series of approximately 4 lectures of 60 minutes). The subject of these lectures is enumerative geometry of curves on algebraic surfaces and its relation to Hilbert schemes of points, real algebraic geometry and tropical geometry. The generating function of the Euler numbers of Hilbert schemes of points on curves has been used by Pandharipande and Thomas to give a mathematical definition of Gopakumar-Vafa invariants, and by Kool-Shende-Thomas to give a proof of a conjecture of mine which describes the generating function of the numbers of δ-nodal singular curves in a linear system of dimension δ on any surface. Shende and me gave a conjectural refinement of this conjecture. Here the number of curves is replaced by a polynomial, whose meaning is still mysterious, but it can be seen to be related to tropical geometry and real algebraic geometry. In this series of lectures we want to explain this circle of ideas, and also use the opportunity to introduce a number of important concepts and techniques, generating functions, cobordism ring, localization, Severi degrees, Welschinger invariants, tropical geometry, Heisenberg algebra. ICTP ICTP pio@ictp.it

Seminar

10 May 2013

@ ICTP

Refined curve counting (II)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Lothar Goettsche (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Activity

13 May 2013 - 17 May 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Joint ICTP-SISSA String Seminar: Phase transitions of magnetic AdS4 black holes with scalar hair

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Stefan VANDOREN ((Utrecht University, Netherlands))

Seminar Start Time: 16:00

Europe/Rome Abstract: Quantum cohomology ring of a smooth projective variety X is a certain deformation of its usual cohomology ring. This structure was introduced at the begging of 90's motivated by works of string theorists. Later on an analogue of the quantum product was defied in the K-theory. In this talk I will describe a way to define an analogue of the quantum product on the derived category of X. ICTP ICTP pio@ictp.it

Seminar

15 May 2013

@ ICTP

Mathematics

Towards quantum product for derived categories

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Refined curve counting (III)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Lothar Goettsche (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 16:00

Europe/Rome Abstract. We will briefly review the strong CP problem and the solution proposed by Peccei and Quinn, the existence of a new degree of freedom that restores C and P conservation in the colour sector: the axion. Then we will review the cosmology of axions focusing on their role as dark matter, and the perspectives for its discovery. ICTP ICTP pio@ictp.it

Seminar

16 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

Axion cold dark matter

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Javier REDONDO (Max-Planck-Institut, Munchen, Germany)

Seminar Start Time: 17:30

Europe/Rome Abstract: We consider a family of adapted complex structures on the cotangent bundle of a Lie group and find the BKS pairing relating the corresponding half-form quantisation. We show that the resulting bundle of quantum Hilbert spaces over the space of polarisations is flat. The vertical polarisation as a limit of complex polarisations yields the coherent state transform (or the Segal-Bargmann-Hall transform). We show that there is another limit of the complex polarisations that corresponds to the Peter-Weyl theorem. This is a joint work with W. Kirwin. ICTP ICTP pio@ictp.it

Seminar

17 May 2013

@ ICTP

Mathematics

Quantisation of the cotangent bundle of Lie groups

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Professor Siye Wu (The University of Hong Kong)

Support E-Mail: math@ictp.it

Seminar Start Time: 16:00

Activity

20 May 2013 - 31 May 2013

@ Trieste - Italy

Mathematics

Advanced School and Workshop in Real and Complex Dynamics | (smr 2460)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): M. Lyubich (Stony Brook), J. Smillie (Cornell), S. Van Strien (Imperial College). ICTP Local Organizer: S. Luzzatto

Secretary: K. Mabilo

Cosponsor(s): BREUDS (Brazilian-European partnership in Dynamical Systems)

Support E-Mail: smr2460@ictp.it

Activity

20 May 2013 - 14 Jun 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

Spring College on Physics of Complex Systems | (smr 2461)

Room: Adriatico Guest House Giambiagi Lecture Hall

Organizer(s): S. Franz, E. Trizac, J.-B. Fournier, M. Ben Amar, A. Gambassi, G. Martinelli, M. Marsili, R. Zecchina, Al. Pelizzola. ICTP Local Organizer: M. Marsili

Secretary: R. del Rio

Support E-Mail: smr2461@ictp.it

Seminar

20 May 2013

@ ICTP

Mathematics

On the abc Conjecture

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Michel Waldschmidt (Université Pierre et Marie Curie, Paris VI)

Support E-Mail: math@ictp.it

Seminar Start Time: 12:00

Seminar

20 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

On hydrodynamics in the presence of anisotropies

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Javier TARRIO (University of Barcelona, Spain)

Seminar Start Time: 15:30

Hosted Activity

21 May 2013 - 24 May 2013

@ Trieste - Italy

IAEA Steering Committee Meeting on the Pilot Project of the NOKEBP on Strengthening of Nuclear Safety Competence in Developing Countries | (smr H324)

Organizer(s): IAEA

Europe/Rome I review the concept of ultra-cold atoms as universal quantum simulators for quantum many body systems, focusing on motivations, main targets and open problems. As a realistic example I then describe a setup of ultracold fermionic mixtures in optical lattices able to host superfluid phases with symmetry obtained by locking independent invariance groups of the normal state. Due to their peculiar symmetry, these phases can also show exotic soliton structures, as vortices with semi-integer flux and gapless non-Abelian Goldstone modes localized on them. The origin of the non-abelianity, the braiding properties, the mechanism and the consequences of fractionality for such vortices are discussed. The scenario proposed displays remarkable similarities to what arises in ultra-dense QCD matter, as in the core of some neutron stars. A discussion about the experimental detection of locked phases and non-abelian fractional vortices is as well provided. ICTP ICTP pio@ictp.it

Seminar

21 May 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Ultra-cold atoms as universal quantum simulators: Symmetry locked superfluid phases"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Giambiagi Lecture Hall

Speaker(s): Luca LEPORI (Universite' de Strasbourg )

Seminar Start Time: 12:30

Seminar

21 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Unwinding Inflation

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Roberto GOBBETTI (New York University, USA)

Seminar Start Time: 17:30

Seminar

22 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Informal JC on Type II Goldstone Bosons and their holographic realizations

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Ad un passo dalla IPHO 2013 | (smr H341)

Organizer(s): G. Cavaggioni

Activity

27 May 2013 - 1 Jun 2013

@ Trieste - Italy

Mathematics

5th Women in Mathematics Summer School on Mathematical Theories towards Environmental Models | (smr 2468)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): Scientific Committee: L. Fajstrup, T. Grava, S. Hittmeyer, E. Mezzetti, M.-F. Ouedraogo, M.-F. Roy, S. Terracini, K.R. Adeeb. Local Organizer: L. Goettsche

Secretary: A. Bergamo

Cosponsor(s): European Women in Mathematics (EWM); INDAM (GNAMPA) and (GNFM); Department of Mathematics and Geosciences, University of Trieste; Department of Mathematics, University of Torino; Department of Mathematics, University of L'Aquila; SISSA; COMPOSITIO MATHEMATICA.

Support E-Mail: smr2468@ictp.it

Europe/Rome More than 10 years ago, it was realized that mean field glassy dynamics, with the emergence of aging and effective temperatures, can be understood as quasi-equilibrium exploration of configuration space. The formalization of this notion, only recently proposed, defines a Markov chain where short times are coarse grained, and subsequent configurations are chosen according to a constrained Boltzmann distribution. In mean field spin glasses, this pseudodynamic rule admits, in the long time limit, a description leading to glassy solutions identical to the ones corresponding to real (Langevin) dynamics. The treatment of the pseudodynamics through replicas unveils a longly suspected relation between replicas and the supersymmetry of the Langevin equation. The application of the formalism to liquids avoids the difficulties related to short time conservation laws, and allows to use equilibrium approximation schemes of liquid theory to study long time dynamics. The scheme is applied to a closure scheme of hierarchical equations recently proposed by Szamel and to liquids in the hypernetted chain (HNC) approximation. It is shown that the former case leads to the standard Mode Coupling Theory (MCT) equations of Gœtze, thus giving an interpretation of it. The second case also gives rise to MCT-like equations, but in a framework where, differently from MCT that requires the input of equilibrium structure factors, static equilibrium and dynamical quantities are computed in a unified consistent framework. Refs. SF and G. Parisi, JSTAT P02003 (2013), SF, G. Parisi and P. Urbani, arXiv:1212.4291 ICTP ICTP pio@ictp.it

Seminar

28 May 2013

@ ICTP

Joint ICTP/SISSA Statistical Physics seminar: "Boltzmann pseudodynamics for spin glasses and liquids"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Giambiagi Lecture Hall

Speaker(s): Silvio FRANZ (LPTMS - Orsay )

Seminar Start Time: 12:30

Europe/Rome I will start with the idea of electronic shell models as proposed for simple metal clusters, and show how this leads to the idea of superatoms. I will then present our work on 3d transition metal (TM) doped alkali and alkaline earth clusters and show how the ideas of electronic shell models play out in these. This will lead us to magnetic superatoms. I will also point out how a subtle interplay of crystal field effect and exchange coupling leads to enhanced stability for certain TM-alkaline earth clusters, and leads to new magnetic superatoms in this series. Time permitting, I will present some of our recent results on TM-doped aluminum clusters and will argue that aromaticity rather than shell models plays a role in these clusters. ICTP ICTP pio@ictp.it

Seminar

28 May 2013

@ ICTP

Informal seminar: "Transition metal dopants in other metal clusters: From shell model to magnetic superatoms and beyond"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Prasenjit SEN (Harish-Chandra Research Institute, Allahabad )

Seminar Start Time: 15:00

Seminar

28 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

Testing Higgs Compositeness at LHC

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Aleksandr AZATOV (Universita' di Roma 'La Sapienza')

Seminar Start Time: 17:30

Seminar

29 May 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Planck results on Sunyaev-Zeldovich clusters and their cosmological implications

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Elena PIERPAOLI (CALTECH & ICTP)

Seminar Start Time: 11:00

Europe/Rome Recently, Coulomb drag measurements have been performed in graphene, usually in the presence of magnetic fields as well. In this work we calculate the magneto-drag and the Hall-drag resistivity at finite temperature for two graphene monolayers by solving the quantum kinetic equation. The presented theory is valid in the hydrodynamic regime, which is dominated by inelastic scattering. The microscopic formulation supports a phenomenological Drude-like picture which for large concentrations equals the usual Drude form, and for small concentration an effective two-band-Drude equation. Our theory allows for a qualitative description for arbitrary chemical potentials. An emphasis is put on the Hall-drag which is absent when derived from the standard Drude equation. We show that the Hall-drag vanishes along the line of opposite carrier concentration in the layers, but we also identify non trivial concentrations at which the Hall-drag vanishes. ICTP ICTP pio@ictp.it

Seminar

30 May 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Hall-drag and magneto-drag in graphene via kinetic equation approach"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Michael SCHUETT (Karlsruhe Institute of Technology)

Seminar Start Time: 12:30

Europe/Rome The subject of these lectures is enumerative geometry of curves on algebraic surfaces and its relation to Hilbert schemes of points, real algebraic geometry and tropical geometry. The generating function of the Euler numbers of Hilbert schemes of points on curves has been used by Pandharipande and Thomas to give a mathematical definition of Gopakumar-Vafa invariants, and by Kool-Shende-Thomas to give a proof of a conjecture of mine which describes the generating function of the numbers of δ-nodal singular curves in a linear system of dimension δ on any surface. Shende and me gave a conjectural refinement of this conjecture. Here the number of curves is replaced by a polynomial, whose meaning is still mysterious, but it can be seen to be related to tropical geometry and real algebraic geometry. In this series of lectures we want to explain this circle of ideas, and also use the opportunity to introduce a number of important concepts and techniques, generating functions, cobordism ring, localization, Severi degrees, Welschinger invariants, tropical geometry, Heisenberg algebra. ICTP ICTP pio@ictp.it

Seminar

31 May 2013

@ ICTP

Mathematics

Refined curve counting (IV)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Lothar Goettsche (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:00

Activity

3 Jun 2013 - 7 Jun 2013

@ Tbilisi - Georgia

Earth System Physics

Extreme Weather and Climate Events in the Southern Caucasus - Black Sea Region | (smr 2510)

Organizer(s): N. Meskhidze (USA), M. Elizbarashvili (Georgia). ICTP Local Organizer: F. Solmon

Secretary: P. Malchose

Support E-Mail: smr2510@ictp.it

Hosted Activity

3 Jun 2013 - 6 Jun 2013

@ Trieste - Italy

International Workshop on Breakdown Science and High Gradient Technology (HG2013) | (smr H322)

Organizer(s): Sincrotrone Trieste

Activity

3 Jun 2013 - 14 Jun 2013

@ Trieste - Italy

Mathematics

ICTP-SISSA-Moscow School on Geometry and Dynamics | (smr 2546)

Organizer(s): A. Bufetov (MIRAS), A. Agrachev (SISSA), V. Timorin (NRU HSE) Local Organizer: S. Luzzatto (ICTP)

Secretary: P. Krizmancic

Cosponsor(s): International School for Advanced Studies (SISSA), National Research University Higher School of Economics - Moscow (NRU HSE) and Steklov Mathematical Institute of the Russian Academy of Science (MIRAS)

Support E-Mail: smr2546@ictp.it

Hosted Activity

3 Jun 2013 - 6 Jun 2013

@ Trieste - Italy

Groom Data Management Meeting | (smr H349)

@ ICTP

Seminar on Disorder and Strong Electron Correlations: New Paths to Unconventional Topological Superconductivity

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Ronny THOMALE (Ecole Polytechnique Federale de Lausanne Switzerland)

Seminar Start Time: 12:30

Europe/Rome Abstract. Anthropological evidence shows a rather recent emergence of the modern cognitive human within a genetic and anatomic already evolved homo-sapiens. I will describe a proposition for the mind-brain mechanism that could underly that transition, as well as the ongoing work to identify and observe it by testing humans in laboratory conditions. ICTP ICTP pio@ictp.it

Colloquium

6 Jun 2013

@ ICTP

On the emergence of modern humans: proposition and search for the underlying mechanism

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Daniele AMATI (SISSA, Trieste)

Colloquium Start Time: 17:30

Seminar

7 Jun 2013

@ ICTP

Mathematics

Refined curve counting (V)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Lothar Goettsche (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:00

Activity

10 Jun 2013 - 21 Jun 2013

@ Trieste - Italy

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

Summer School on Particle Physics | (smr 2463)

Room: Leonardo da Vinci Building Main Lecture Hall

ALGEBRAIC GEOMETRY SEMINAR - Introduction to the Zariski multiplicity conjecture.

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Cristophe Eyral

Support E-Mail: math@ictp.it

Seminar Start Time: 11:30

Europe/Rome I will present theoretical results on induced superconductivity in graphene covered by low density of small (sub-micron) islands of superconducting metal. Then I present some of recently obtained experimental data on graphene with tin islands and discuss the comparison between the data and the theory. ICTP ICTP pio@ictp.it

Seminar

13 Jun 2013

@ ICTP

Seminar on Disorder and Strong Electron Correlations. "Induced Superconductivity in Graphene"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): M.V. FEIGEL'MAN (L.D. Landau Institute, Moscow, Russian Federation)

Seminar Start Time: 12:30

Seminar

14 Jun 2013

@ ICTP

Mathematics

Refined curve counting (VI)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Lothar Göttsche (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:00

Activity

16 Jun 2013 - 28 Jun 2013

@ Trieste - Italy

Earth System Physics

Earthquake Tectonics and Hazards on the Continents | (smr 2464)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): J. Jackson (UK), P. England (UK), A. Aoudia (ICTP). ICTP Local Organizer: A. Aoudia

Laboratories: AGH (Infolab.)

Secretary: P. Wardell

Support E-Mail: smr2464@ictp.it

Activity

16 Jun 2013 - 23 Jun 2013

@ Crete - Greece

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

7th Crete Regional Meeting in String Theory | (smr 2511)

Organizer(s): Organizing Committee: F. Ardalan, I. Bakas, D. Luest, E. Kiritsis, K. Narain, E. Rabinovici, S. Wadia, E. Witten

Secretary: R. Sain

Support E-Mail: smr2511@ictp.it

Activity

17 Jun 2013 - 21 Jun 2013

@ Trieste - Italy

Earth System Physics

Joint ICTP-IAEA Workshop on Evaluating Groundwater Pathways and Residence Times as part of Site Investigations and Post-Closure Safety Assessments for Geological Repositories | (smr 2465)

Room: Leonardo da Vinci Building Euler Lecture Hall

Organizer(s): I. MELE, P. DEGNAN, R. ALEXANDER (NEFW). Local organizer: E. COPPOLA

Secretary: M. de Comelli

Support E-Mail: smr2465@ictp.it

Europe/Rome Abstract: I will give a brief introduction about quantum squeezing, and discuss properties of some definitions of the spin squeezing parameter. Then I will show some recent results of our group for the time dependent squeezing parameter in different systems: Cavity QED, spin chains, and quantum corrals. ICTP ICTP pio@ictp.it

Seminar

20 Jun 2013

@ ICTP

Informal Condensed Matter Seminar. Quantum Spin Squeezing

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Diego A. TIELAS (University of La Plata, Argentina)

Seminar Start Time: 12:30

Europe/Rome The talk will discuss the dynamics of circle maps (orientation-preserving circle homeomorphisms (o.p.c.h)). We will review the topological classification of these circle maps, namely the Poincare Classification and the Denjoy Theory. We will introduce the beautiful construction of the dynamical partition of the circle. We will review the connection between the concept of the Diophantine properties of the irrational rotation number of our map and the smooth classification of (sufficiently regular) circle maps (the so called "rigidity" theory), in the context of three important classes: diffeomorphisms, critical maps, and maps with a break point. For circle maps with a break point, we will discuss two recent results that were obtained in the rigidity theory of circle maps with a break point. The first main result is a proof that C^1 rigidity holds for circle maps with a break point for almost all irrational rotation numbers. This result is joint work with Kostya Khanin and Sasa Kocic. The second main result has to do with the family of fractional linear transformation (FLT) pairs. An FLT-pair T is a circle homeomorphism that consists of two branches each of which is an FLT. Such a map can be viewed as a circle map with two neighbouring break points lying on the same orbit. For this family, C^1 rigidity holds for all irrational rotation numbers without any restriction (the so-called "robust rigidity"). ICTP ICTP pio@ictp.it

Seminar

20 Jun 2013

@ ICTP

Mathematics

Circle Maps, Renormalization, and Rigidity Theory

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Elio Mazzeo (University of Toronto, Canada)

Support E-Mail: math@ictp.it

Seminar Start Time: 17:00

Hosted Activity

22 Jun 2013

@ Trieste - Italy

17o Convegno Triveneto SIA (Societa' Italiana Andrologia) | (smr H350)

Organizer(s): Societa' Italiana di Andrologia

Activity

24 Jun 2013 - 28 Jun 2013

@ Trieste - Italy

High Energy Cosmology and Astroparticle Physics,LHC Physics

Higgs and Beyond the Standard Model Physics at the LHC | (smr 2466)

Room: Leonardo da Vinci Building Main Lecture Hall

Mathematics

Condensed Matter and Statistical Physics

School on Hands-on Research in Complex Systems | (smr 2471)

Room: Adriatico Guest House Giambiagi Lecture Hall

Organizer(s): J. Niemela (ICTP), H.L. Swinney (USA), R. Roy (USA), K. Showalter (USA) ASSOCIATE DIRECTORS: M. Schatz (USA), M. Shattuck (USA)ICTP Local Organizer: J. Niemela

Laboratories: MLab

Secretary: G. De Meo

Support E-Mail: smr2471@ictp.it

Seminar

1 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Special Lecture: Integrability and supersymmetric vacua (III)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Lecture Room B

Speaker(s): Samson SHATASHVILI (TCD & IHES)

Seminar Start Time: 12:00

Europe/Rome Abstract: Bertrand spacetimes (BSTs) are static, spherically symmetric solutions of Einstein's equations, that admit stable, closed orbits. Starting from the fact that to a good approximation, stars in the disc or halo regions of typical galaxies move in such orbits, we propose that, under certain physical assumptions, the dark matter distribution of some low surface brightness (LSB) galaxies can seed a particular class of BSTs. In the Newtonian limit, it is shown that for flat rotation curves, our proposal leads to an analytic prediction of the NFW dark matter profile. ICTP ICTP pio@ictp.it

Seminar

2 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

A General Relativistic understanding of a Dark Matter dominated galaxy via Berterand Spacetime

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Xiaoli Han (Tsinghua University, Beijing, P.R. China)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:00

Europe/Rome Abstract: I review the knowledge of the Dark Matter distribution in our Galaxy in the light of recent experimental astrophysical data. I will focus on the determination of the Dark Matter density at the Sun's location and its uncertainties, interesting for direct detection experiments, and then review the constraints on the global spatial distribution, crucial for the indirect DM search especially towards the galactic center. ICTP ICTP pio@ictp.it

Seminar

5 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

The Galactic Dark Matter Density

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Fabrizio NESTI (Universita' dell'Aquila)

Seminar Start Time: 17:30

Activity

8 Jul 2013 - 12 Jul 2013

@ Trieste - Italy

International Workshop on Singularities and Topological Structures of Light | (smr 2467)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): E. Karimi (U. of Ottawa, Canada) ICTP Local Organizer: J. Niemela

Secretary: L. Iannitti

Cosponsor(s): the Optical Society of America, OSA

Support E-Mail: smr2467@ictp.it

Activity

8 Jul 2013 - 12 Jul 2013

@ Shanghai - People's Republic of China

Condensed Matter and Statistical Physics

Joint ICTP-NSFC School and Advanced Workshop on Modern Electronic Structure Computations | (smr 2509)

Organizer(s): S. Baroni (SISSA), R. Gebauer (ICTP), Xin-Gao Gong (Fudan University), S. Piccinin (CNR); Local Organizers: X.G. Gong, H. Wu, H.J. Xiang

Secretary: M. Poropat

Cosponsor(s): Quantum-Espresso Foundation, London; Key Laboratory of Computational Physical Sciences, Shanghai

Support E-Mail: smr2509@ictp.it

Europe/Rome Abstract: We show explicitly how the exact renormalization group equation of interacting vector models in the large N limit can be mapped into certain higher-spin equations of motion. The equations of motion are generalized to incorporate a multiparticle extension of the higher-spin algebra, which reflects the "multitrace" nature of the interactions in the dual field theory from the holographic point of view. ICTP ICTP pio@ictp.it

Seminar

8 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Toward a Higher-Spin Dual of Interacting Field Theories

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Leopoldo PANDO ZAYAS (University of Michigan, USA)

Seminar Start Time: 17:30

Europe/Rome Abstract. The Dual Superconductor picture, proposed as a resolution for the prob- lem of Quark Confinement, predicts Flux Tubes connecting quarks. Evidence for such flux tubes in QCD has been unambiguously provided by Lattice Gauge Simulations. An algorithmic breakthrough by Luscher and Weisz permitted very accurate studies of the flux tube which showed that the sub- dominant term in ground state energy was characterstic of Bosonic Strings, the original candidates for explaining strong interactions. Pushan Majumdar and myself carried out massive simulations using the Luscher-Weisz algorithm. We showed that even the next two higher order terms are exactly what is expected of a free bosonic string. Peter Matlock and myself subsequently proved this result analytically using the idea of effective string theories. I shall conclude by briefly reviewing the status of even higher order corrections as well as some implications of all these results. ICTP ICTP pio@ictp.it

Seminar

9 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

From strings to strings - the amazing story of strings in Quantum Chromodynamics

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): N.D. HARI DASS (CQIQC, Bangalore and Chennai Mathematical Institute, India)

Seminar Start Time: 17:30

Hosted Activity

10 Jul 2013

@ Trieste - Italy

Meeting of the CEI Focal Points for Science and Technology and Scientists | (smr H354)

Organizer(s): Central European Intitiative (CEI)

Activity

15 Jul 2013 - 2 Aug 2013

@ Trieste - Italy

Mathematics

School and Workshop on "Geometric Measure Theory and Optimal Transport" | (smr 2459)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): L. Ambrosio (Pisa), T. Colding (MIT), C. De Lellis (Zurich). ICTP Local Organizer: C. Arezzo

Secretary: K. Mabilo

Support E-Mail: smr2459@ictp.it

Deadline extended to 31 March 2013

Activity

15 Jul 2013 - 19 Jul 2013

@ Trieste - Italy

Advanced Workshop on Nonlinear Photonics, Disorder and Wave Turbulence | (smr 2472)

Room: Leonardo da Vinci Building Euler Lecture Hall

Organizer(s): V. Zakharov (USA), Y. Kivshar (Australia), D. Wiersma (Italy), S. Turitsyn (UK). ICTP Local Organizer: J. Niemela

Secretary: F. Delconte

Cosponsor(s): In collaboration with: Aston Institute of Photonic Technologies, European Laboratory for Non-Linear Spectroscopy, Novosibirsk State University, Institute of Automation and Electrometry of Russian Academy of Science.

Support E-Mail: smr2472@ictp.it

Europe/Rome The purpose of this school is to provide a unique international educational experience aimed at building future leadership in managing nuclear energy programs from among promising young professionals from developing countries, particularly newcomer countries that seek to develop nuclear power or other nuclear applications, who show promise as future leaders of the nuclear industry, academia and public sector entities in their country. It will enable the transfer of IAEA specific knowledge to Member States towards their capacity building efforts. The School will consist of a series of keynote presentations by leading IAEA specialists on topics relevant to managing nuclear energy programs followed by practical sessions discussing the issues raised and difficulties envisaged. All chosen participants will be expected to be actively involved in discussions, assigned projects, panel reviews and all school activities. Trieste - Italy ICTP pio@ictp.it

Activity

15 Jul 2013 - 2 Aug 2013

@ Trieste - Italy

Joint ICTP-IAEA School on Nuclear Energy Management | (smr 2473)

Room: Adriatico Guest House Giambiagi Lecture Hall

Organizer(s): A. Bychkov, T. Karseka, Y. Yanev(IAEA). ICTP Local Organizer: C. Tuniz

Secretary: A. Lusenti

Support E-Mail: smr2473@ictp.it

Activity

15 Jul 2013 - 6 Aug 2013

@ Trieste - Italy

First session of TREGA Intensive Training | (smr 2666)

Organizer(s): S.M. Radicella (ICTP).

Secretary: R. Torre

Support E-Mail: smr2666@ictp.it

Europe/Rome Abstract: The SuperCool inflation has the virtue of working "Naturally" at TeV scales and even much lower, which opens the possibility of using collider physics to probe inflation. In addition, the model introduces a new mechanism to end Old inflation. The Universe starts off hot and trapped in a false vacuum. The Universe supercools and inflates solving the horizon and flatness problems. The inflaton couples to a set of QCD like fermions. When the fermions' non-Abelian gauge group freezes, the Yukawa terms generate a tadpole for the inflaton, which removes the barrier. Inflation ends, and the Universe rapidly reheats. The model also can generate the necessary perturbations for inflation and can satisfy constraints from Plank. ICTP ICTP pio@ictp.it

Seminar

15 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Super cool Inflation-TeV scales

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Douglas SPOYLAR (IAP, Paris, France)

Seminar Start Time: 17:30

Activity

17 Jul 2013 - 19 Jul 2013

@ Rome - Italy

Mathematics

Mediterranean Youth Mathematical Championship - MYMC | (smr 2568)

Organizer(s): Local organizers: C. Arezzo, F. Rodriguez-Villegas

Support E-Mail: smr2568@ictp.it

Europe/Rome Abstract I will discuss the global phase diagram of the disordered Bose-Hubbard model in all dimensions controlled by the theorem of inclusions. In 1D, in the regime when strong disorder is more relevant than field quantization the superfluid--to--Bose-glass criticality is preceded by the prolonged logarithmically slow classical-field renormalization flow of the superfluid stiffness at mesoscopic scales. With the system compressibility remaining constant, the quantum nature of the system manifests itself only in the renormalization of dilute weak links. The transition point is still controlled by the proliferation of the instanton--anti-instanton pairs when the Luttinger liquid parameter equals 3/2, in accordance with the universal quantum scenario. ICTP ICTP pio@ictp.it

Seminar

18 Jul 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "Disordered bosons"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Nikolay PROKOVIEV (University of Massachusetts)

Seminar Start Time: 12:30

Europe/Rome SCHOOL: 22 - 26 July 2013 WORKSHOP: 29 July - 2 August 2013 The purpose of the School is to provide the theoretical and computational tools to study the implications of the recent results from CMB experiments. It is intended for graduate students, as well as more senior non-expert researchers that are interested in these fields. The Workshop is devoted to the discussion of the experimental CMB results in all their aspects, their relation with other probes and the future prospects. Trieste - Italy ICTP pio@ictp.it

Activity

22 Jul 2013 - 2 Aug 2013

@ Trieste - Italy

High Energy Cosmology and Astroparticle Physics,Cosmology

School and Workshop on New Light in Cosmology from the CMB | (smr 2474)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): C. Baccigalupi (SISSA), P. Creminelli (ICTP), R. Sheth (ICTP & UPenn), A. Zacchei (INAF - OATS)

Secretary: N. van Buuren

Collaborations: The Italian Institute for Nuclear Physics (INFN)

Support E-Mail: smr2474@ictp.it

Activity

22 Jul 2013 - 2 Aug 2013

@ Manila - Philippines

Mathematics

Algebraic Curves over Finite Fields | (smr 2520)

Organizer(s): ICTP Local Organizer: T.R. Ramakrishnan

Secretary: A. Bergamo

Seminar

22 Jul 2013

@ ICTP

Mathematics

Associative algebras and Lie algebras defined by Lyndon words

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Tatiana Gateva-Ivanova (AUBG & IMI BAS, Sofia, Bulgaria)

Support E-Mail: math@ictp.it

Seminar Start Time: 16:00

Seminar

23 Jul 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Wilson loops in Chern-Simons and ABJ(M) theories at two loops

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Gaston GIRIBET (Universidad de Buenos Aires, Argentina)

Seminar Start Time: 15:30

Colloquium

23 Jul 2013

@ ICTP

Origin of probabilities and their application to the multiverse

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Andreas ALBRECHT (UC Davis, USA)

Colloquium Start Time: 17:15

Seminar

24 Jul 2013

@ ICTP

Mathematics

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Towards phenomenology from heterotic orbifolds

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Saul RAMOS SANCHEZ (Institute of Physics, UNAM, Mexico)

Seminar Start Time: 17:30

Activity

5 Aug 2013 - 14 Aug 2013

@ Hyderabad - India

Earth System Physics

Fundamentals of Ocean Climate Modelling at Global and Regional Scales | (smr 2512)

Organizer(s): M. Ravichandran (INCOIS), V. Balaji (GFDL), R. Farneti (ICTP)

Secretary: P. Malchose

Support E-Mail: smr2512@ictp.it

Hosted Activity

5 Aug 2013 - 10 Aug 2013

@ Trieste - Italy

ROSATOM | (smr H348)

Organizer(s): IAEA (Nuclear Knowledge Management Institute)

Europe/Rome VIDEOS, SLIDES and TUTORIALS are available for download from the online PROGRAMME on both ICTP and FHI websites (i.e.: scroll below online programme, or visit: http://th.fhi-berlin.mpg.de/sitesub/meetings/DFT-workshop-2013/index.php?n=Meeting.Program) The Abdus Salam International Centre for Theoretical Physics (ICTP, Trieste, Italy) and the Fritz Haber Institute of the Max Planck Society (FHI, Berlin, Germany), with the co-sponsorship of the Psi-k Network, of CECAM (EPFL, Lausanne, Switzerland), of the IOM (CNR, Trieste, Italy), and of the NSF funded Travel Award Program of the Materials Computation Center, University of Illinois at Urbana-Champaign, have organized a Hands-on Workshop on Density-Functional Theory and Beyond: Computational Materials Science for Real Materials, held in Trieste from 6 to 15 August 2013. With current electronic-structure theory, quantitative analyses and predictions of hitherto unknown properties and functions of materials (including nanostructures, clusters, (bio)molecules) are possible. The finding of improved or even novel functional materials is critical to solve key issues of our society like the energy challenge or managing the environment. This workshop and hands-on tutorial has taught and discussed the concepts, theories, and methods that are expected to play a central role in future materials design and novel materials discovery: • Ground state and electronically excited states based on density-functional theory also with advanced functionals, including exact exchange approaches, TD-DFT, many-body perturbation theory • Electron-vibrational coupling, heat transport, and electron transport • Ab initio electronic-structure theory as basis for scaling approaches and multi-scale modeling for thermodynamics and statistical mechanics • Validation, verification, and limits of approximations and methods The methods have been demonstrated for both inorganic and organic materials as well as hybrids thereof. We have discussed nanostructures, clusters, (bio)molecules, solids (ordered and disordered), and liquids. We have explicitly addressed difficulties and failures of recent and ongoing research work, as knowing these is crucial for the further advancement of the field. Participants have employed the FHI-aims all-electron electronic structure package (website: aimsclub.fhi-berlin.mpg.de). SPEAKERS Heiko Appel (FHI, Berlin) Stefano Baroni (SISSA, Trieste) Jörg Behler (RU Bochum) Roberto Car (Princeton U) Mark Casida (CNRS Grenoble) Claudia Draxl (HU Berlin) Ferdinand Evers (KIT, Karlsruhe) Luca Ghiringhelli (FHI, Berlin) Gus Hart (Brigham Young University, Provo UT) Peter Haynes (Imperial College London) Oliver Hofmann (FHI, Berlin) Sergey Levchenko (FHI, Berlin) Nikolaj Moll (IBM Research, Zurich) Frank Neese (MPI Mühlheim) Jörg Neugebauer (MPI Düsseldorf) Karsten Reuter (TU Munich) Michael Rieger (BASF, Ludwigshafen) Patrick Rinke (FHI, Berlin) Mariana Rossi (FHI, Berlin) Alex Tkatchenko (FHI, Berlin) Ellen D. Williams (BP International Ltd, London) Trieste - Italy ICTP pio@ictp.it

Activity

6 Aug 2013 - 15 Aug 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

Hands-on Workshop on Density Functional Theory and Beyond: Computational Materials Science for Real Materials | (smr 2475)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): C. Baldauf (FHI, Berlin), V. Blum (FHI, Berlin), R. Gebauer (ICTP, Trieste), M. Scheffler (FHI, Berlin)

Laboratories: AGH (Infolab.)

Secretary: N. Ivanissevich

Support E-Mail: smr2475@ictp.it

Seminar

6 Aug 2013

@ ICTP

Mathematics

Cremona groups

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Yuri Prokhorov (Steklov Mathematical Institute, Moscow)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Europe/Rome Abstract. A local and gauge invariant alternative version of QCD for massive fermions, will be presented. It is underlined that its action includes vertices which eventually could had been overlooked before for the consideration of gauge theories, since at first sight, they seem as breaking power counting renormalizability. However, the fact that those terms also modify the quark propagators, to become more convergent at large momenta, strongly suggests that theory is in fact renormalizable. Accepting this view, it also can be argued that all the four fermions terms constituting the Nambu-Jona-Lasinio models, could be included as counterterms in a slightly generalized renormalization procedure for massless QCD. The possible applications of these properties in massless SUSY models will be underlined. ICTP ICTP pio@ictp.it

Seminar

8 Aug 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Is it a generalized NJL model an effective action of massless QCD?

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Alejandro Cabo Montes de Oca (Departamento de Física Teórica, Instituto de Cibernética, Matemática y Física, La Habana, Cuba)

Seminar Start Time: 17:30

Activity

12 Aug 2013 - 16 Aug 2013

@ Trieste - Italy

Joint ICTP-IAEA School of Nuclear Knowledge Management | (smr 2476)

Room: Leonardo da Vinci Building Euler Lecture Hall

Organizer(s): Director: M.M. Sbaffoni (IAEA - Vienna), Co-Director: A. Kosilov (IAEA - Vienna) ICTP Local Organizer: C. Tuniz

Secretary: E. Brancaccio

Support E-Mail: smr2476@ictp.it

Europe/Rome Abstract We discuss a model Kondo-type Hamiltonian representing an analytically tractable version of the model used by Yin et.al., Phys. Rev. B 86, 2399 (2012) to explain the non-Fermi liquid behavior of iron chalcogenides and ruthenates in an intermediate energy range. We consider a regime where a complete screening of the local degrees of freedom proceeds in two stages described by two characteristic energy scales T_K^orb >> E_0. The first scale marks a screening of the orbital degrees of freedom and the second one marks a crossover to the regime with coherent propagation of quasiparticles. We present analytical results for the specific heat and magnetic susceptibility at T << T_K^orb. ICTP ICTP pio@ictp.it

Seminar

15 Aug 2013

@ ICTP

Seminar on Disorder and strong electron correlations: "An analytically tractable model of bad metals"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Alexei TSVELIK (Brookhaven National Laboratory)

Seminar Start Time: 12:30

Europe/Rome Abstract Elastic backscattering of electrons moving along the helical edge is prohibited by time-reversal symmetry (TRS). We demonstrate, however, that an ensemble of magnetic impurities may cause TRS-preserving quasi-elastic backscattering, resulting in interference effects in the conductance. The characteristic energy transferred in a backscattering event is suppressed due to the RKKY interaction of localized spins (the suppression is exponential in the total number of magnetic impurities). We predict the statistics of conductance fluctuations to differ from those in the conventional case of a one-dimensional system with quenched disorder. Reference: V.Cheianov, L.Glazman, Phys. Rev. Lett., 110, 206803. (2013) ICTP ICTP pio@ictp.it

Seminar

16 Aug 2013

@ ICTP

Informal Condensed Matter Seminar: Mesoscopic conductance fluctuations at a helical edge of a topological insulator

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Vadim Cheianov (University of Lancaster, UK)

Seminar Start Time: 11:30

Hosted Activity

17 Aug 2013

@ Trieste - Italy

C-13 IUPAP Committee Meeting | (smr H340)

Organizer(s): S. Scandolo (ICTP)

Activity

19 Aug 2013 - 23 Aug 2013

@ Trieste - Italy

Condensed Matter and Statistical Physics

Advanced Workshop on Non-equilibrium Bosons: From Driven Condensates to Non-Linear Optics | (smr 2477)

Room: Adriatico Guest House Kastler Lecture Hall

Organizer(s): B.L. Altshuler (USA), S. Flach (New Zealand), A. Imamoglu (Switzerland), A. Kavokin (UK), V. Yudson (Russia). ICTP Local Organizer: M. Kiselev

Secretary: R. del Rio

Cosponsor(s): U.S. National Science Foundation & International Institute for Complex Adaptive Matter

Support E-Mail: smr2477@ictp.it

Co-sponsored by:

Activity

20 Aug 2013 - 23 Aug 2013

@ Trieste - Italy

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

School on Supersymmetry and Unification of Fundamental Interactions | (smr 2542)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): B. Acharya (ICTP), M. Bertolini (SISSA), P. Creminelli (ICTP) , E. Gava (INFN), K. Narain (ICTP), F. Quevedo (ICTP), A. Romanino (SISSA), M. Serone (SISSA) and G. Villadoro (ICTP)

Secretary: de Comelli/Sauleek

Support E-Mail: smr2542@ictp.it

Colloquium

20 Aug 2013

@ ICTP

From Einstein's intuition to quantum bits: a new quantum age?

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Alain ASPECT (Intitut d'Optique, Palaiseau)

Colloquium Start Time: 18:30

Europe/Rome In this talk, we will present explicit examples of abelian surfaces with everywhere good reduction. One class of examples is connected with the Paramodularity Conjecture of Brumer-Kramer, which will be discussed in the process. This is joint work with Abhinav Kumar. ICTP ICTP pio@ictp.it

Seminar

21 Aug 2013

@ ICTP

Mathematics

Examples of abelian surfaces with everywhere good reduction

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Lassina Dembélé (Warwick Mathematics Institute, U.K.)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Europe/Rome Abstract: In this talk I focus on the low temperature expansion of the first law of thermodynamics for near-extremal black holes and derive "laws of extremal black hole dynamics" and show that for extremal black holes with non-vanishing entropy, the leading order contribution yields an expression for their extremal entropy in agreement with the entropy function result and the Cardy formula for the entropy of a two dimensional chiral conformal field theory (CFT). When their entropy vanishes due to the vanishing of a one-cycle on the horizon, such leading contribution is always compatible with the first law satisfied by a BTZ black hole. These results are universal and consistent both with the presence of local AdS2 and AdS3 near horizon throats for extremal black holes and with the suggested quantum microscopic descriptions (AdS2/CFT1, Kerr/CFT and EVH/CFT). ICTP ICTP pio@ictp.it

Seminar

22 Aug 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Laws of Extremal Black Hole (Thermo)dynamics

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Mohammad M. SHEIKH-JABBARI (IPM, Tehran, Iran)

Seminar Start Time: 18:30

Activity

25 Aug 2013 - 31 Aug 2013

@ Trieste - Italy

High Energy Cosmology and Astroparticle Physics,Phenomenology of Particle Physics

21st International Conference on Supersymmetry and Unification of Fundamental Interactions | (smr 2479)

Room: Leonardo da Vinci Building Main Lecture Hall

Organizer(s): B. Acharya (ICTP), M. Bertolini (SISSA), P. Creminelli (ICTP) , E. Gava (INFN), K. Narain (ICTP), F. Quevedo (ICTP), A. Romanino (SISSA), M. Serone (SISSA) and G. Villadoro (ICTP)

Secretary: de Comelli/Sauleek

Cosponsor(s): SISSA, INFN and CF-Consorzio per la Fisica. Co-organized with the Comune of Trieste and with the Patronage of Universita' degli Studi di Trieste

Support E-Mail: smr2479@ictp.it

Europe/Rome Abstract: Titanium dioxide (TiO2¬) is a widely used material with many industrial applications. Because of the photocatalytic activity and environmental compatibility, it has tremendous potential applications in solar cells, dye industries, electronic devices, sensors and transformers. Density functional - pseudopotential calculations were performed to study the effect of hydrogen doping in bulk, and also H-doping and oxygen vacancy on electronic structure and stability of (001) surface of TiO2 in the anatase phase. In the framework of ab-initio atomistic thermodynamic, we argue that the anatase TiO2 prefers a defected oxygen layer termination in the (001) direction. The obtained electronic structures indicate that deep hydrogen doping in this stable termination creates a mid-gap state about 0.52 eV below the conduction band and hence decreases the band gap of the system. This phenomenon may explain the enhanced photocatalytic activity of the anatase TiO2 (001) surface after hydrogenation. ICTP ICTP pio@ictp.it

Seminar

27 Aug 2013

@ ICTP

Associate's CMSP Seminar: "Ab-initio study of H-doping and Oxygen vacancy in TiO2"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Giambiagi Lecture Hall

Speaker(s): M.R. Mohammadizadeh (University of Tehran, Iran)

Seminar Start Time: 12:00

Europe/Rome Abstract: The effect of hole doping on the Tight-Binding (TB) model of the Cu-O planes in the La2CuO4 constructed in previous works is investigated here. Firstly, it is pointed out that the model employed constitutes a generalization of the Hubbard one for the same system. Thus, the former predictions of the insulator gap, antiferromagnetic (AF) character and the existence of a paramagnetic-pseudogap (PPG) state at half-filling, become natural ones to be expected from this more general picture. The effect of hole doping on the antiferromagnetic-insulator state (AFI) and the paramagnetic-pseudogap one at half-filling, is investigated here at T = 0 K. The results predict the occurrence of a quantum phase transition (QPT) from the antiferromagnetic- insulator state at low doping to a paramagnetic-metallic state (PM) at higher hole densities. Therefore, a clear description of the hidden QPT laying beneath the “dome” in high critical temperature (HTc) superconducting materials is found. At low doping, the systems prefers the AFI state, and at the critical value of the doping density dc = 0.2, the energy of a metallic state starts becoming lower. The evolution with small doping values of the band spectrum of the AFI state, shows that the holes tend to become localized at the middle of the sides of the reduced Brillouin zone (BZ). Then, when passes through the critical value, the holes of the AFI state move to become situated at the corners of the same reduced BZ, showing in this way a structural change at the phase transition point. It suggests that the Kramers degeneration in combination with the spin-spatial entangled nature of the hole states, can lead to a new kind of pair interaction between two holes. The binding energy value is estimated as a function of the screening. ICTP ICTP pio@ictp.it

Seminar

27 Aug 2013

@ ICTP

Associate's CMSP Seminar: "Insulator-AF and Pseudogap states joining into a QPT beneath the superconducting “dome” from a model CuO planes in La2CuPO4"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Giambiagi Lecture Hall

Speaker(s): Alejandro Cabo (ICIMAF, Havana, Cuba)

Seminar Start Time: 12:30

Activity

2 Sep 2013 - 6 Sep 2013

@ ICTP

Earth System Physics

Conference on Synthetic Aperture Radar: A Global Solution for Monitoring Geological Disasters | (smr 2480)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Kastler Lecture Hall)

Organizer(s): I. Hamling (GNS-New Zealand), T. Wright, (Leeds). ICTP Local Organizer: A. Aoudia

Laboratories: AGH (Infolab.)

Secretary: L. Iannitti

Cosponsor(s): International Union of Geodesy and Geophysics (IUGG)

Support E-Mail: smr2480@ictp.it

Activity

2 Sep 2013 - 13 Sep 2013

@ ICTP

Mathematics

Advanced School and Workshop on Random Matrices and Growth Models | (smr 2481)

Address: Strada Costiera, 11 34151 - Trieste (Italy)

Room: Leonardo Building (Main Lecture Hall)

Organizer(s): T. Grava (SISSA), B. Schlein (Germany), A. Soshnikov (USA). Local Organizer: R. Ramakrishnan

Secretary: Delconte/Di Giovannantonio

Support E-Mail: smr2481@ictp.it

M. Di Giovannantonio replaces F. Delconte (on maternity leave) from 5 August 2013.

Activity

2 Sep 2013 - 13 Sep 2013

@ Saint-Louis - Senegal

Mathematics

Numerical Methods in Fluid Mechanics, Mathematical Epidemiology and Reaction-diffusion Systems | (smr 2519)

Room: Université Gaston Berger

Organizer(s): ICTP Local Organizer: T.R. Ramakrishnan

Secretary: A. Bergamo

CIMPA activity.

Seminar

4 Sep 2013

@ ICTP

Digital Image Quality Analysis in Dental Panoramic Studies: Results of two Projects

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Oppenheimer Meeting Room

Frontiers of Nanomechanics | (smr 2445)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Kastler Lecture Hall)

Secretary: P. Krizmancic

Organizer(s): M. Blencowe (USA), J. von Delft (Germany), I. Favero (France), K. Lehnert (USA), F. Marquardt (Germany), E. Weig (Germany). ICTP Local Organizer: M. Kiselev

Cosponsor(s): Center for NanoScience (CeNS, Munich, Germany), Nanosystem Initiative Munich (NIM, Munich, Germany) and Initial Training Network - Cavity Quantum Optomechanics (ITN cQOM, Lausanne, Switzerland)

Support E-Mail: smr2445@ictp.it

Activity

9 Sep 2013 - 13 Sep 2013

@ ICTP

Mathematics

Workshop on Geometric Correspondences of Gauge Theories | (smr 2482)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House Giambiagi + Denardo

Secretary: E. Brancaccio

Organizer(s): A. Belavin [Landau ITP, Moscow], G. Bonelli [SISSA & INFN, Trieste], L. Goettsche [ICTP, Trieste], K. Narain [ICTP, Trieste], A. Tanzini [SISSA & INFN, Trieste], G. Thompson [ICTP, Trieste].

Support E-Mail: smr2482@ictp.it

Colloquium

10 Sep 2013

@ ICTP

Quantum control of electromagnetic and mechanical resonators

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Main Lecture Hall

Speaker(s): Andrew CLELAND (University of California, Santa Barbara)

Colloquium Start Time: 17:30

Europe/Rome Worldwide, women constitute a decided minority in the physics community. There are four main arguments for increasing the number of women in physics: (i) As with any intellectual activity, physics ought to be inclusive and be practised by a diverse body of scientists. (ii) In an era when too few good students take up physics, it is especially foolish to be effectively excluding half the student population. (iii) In the absence of role models, talented girls are less likely to take up physics. (iv) When there are very few women in physics, these women often face a hostile or unsupportive work environment, that makes it difficult for them to thrive and do good work. This is obviously a large and multi-faceted problem with complicated societal causes and implications. We will not attempt to tackle all aspects of these in this short workshop. Our target group is working women physicists from all over the world, with a special focus on developing countries. What we would like to do for these women scientists is: • Help them establish a worldwide network of women scientists who can provide support, • advice, and role models. • Help them build self-confidence (Many studies have shown that a lack of self-esteem • hampers women in their rise up the academic ladder). • Help them gain the professional skills that they need to succeed in their careers. The programme will feature inspiring talks by successful women physicists as well as talks on how to develop professional skills such as writing scientific papers and giving talks. Participants will also give poster presentations on their research work, which will enable them to exchange ideas, network and build scientific contacts. ICTP ICTP pio@ictp.it

Activity

16 Sep 2013 - 19 Sep 2013

@ ICTP

New Research Areas (Physics and Development)

Career Development Workshop for Women in Physics | (smr 2483)

Address: Strada Costiera, 11 34151 - Trieste (Italy)

Room: Leonardo Building (Euler Lecture Hall)

Secretary: M. Di Giovannantonio

Organizer(s): S. Narasimhan (India), E. Simmons (USA). ICTP Local Organizer: E. Coppola

Support E-Mail: smr2483@ictp.it

Activity

16 Sep 2013 - 27 Sep 2013

@ ICTP

Joint ICTP-IAEA Training in Radiation Protection of Patients | (smr 2485)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Kastler Lecture Hall)

Secretary: S. Radosic

Organizer(s): M. Rehani (IAEA). ICTP Local Organizer: L. Bertocchi

Support E-Mail: smr2485@ictp.it

Hosted Activity

17 Sep 2013 - 19 Sep 2013

@ Trieste - Italy

DEA Conference | (smr H326)

Room: AGH (Giambiagi Lecture Hall)

Organizer(s): The Open University

Activity

24 Sep 2013 - 26 Sep 2013

@ ICTP

Condensed Matter and Statistical Physics

Earth System Physics

WCRP-World Climate Research Programme: 1st CORDEX Workshop on Statistical Downscaling | (smr 2647)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Denardo Lecture Hall)

Secretary: S. Henningsen

Organizer(s): William J. Gutowski (Iowa State University, USA), Bruce Hewitson (University of Cape Town, South Africa), Rasmus Benestad (Norwegian Meteorological Institute, Norway), local F. Giorgi (ICTP)

Support E-Mail: smr2647@ictp.it

Activity

30 Sep 2013 - 4 Oct 2013

@ ICTP

ICTP-IAEA Joint Workshop on Nuclear Data for Science and Technology: Medical Applications | (smr 2484)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Denardo Lecture Hall)

Secretary: A. Lusenti

Organizer(s): R. Capote Noy (NAPC, IAEA, Vienna, Austria) S.M. Qaim (Institut fur Nuklearchemie Forschungszentrum, Juelich, Germany). ICTP Local Organizer: L. Bertocchi

Support E-Mail: smr2484@ictp.it

Europe/Rome The Science Dissemination Unit (SDU) of the Abdus Salam International Centre for Theoretical Physics (ICTP) will organize a workshop on Science Dissemination and On-line Certification for All, to be held at the ICTP, Trieste, Italy from September 30 to October 2, 2013. The workshop aims to guide the scientific community in developing countries into the potentialities of new, low-cost scientific pedagogical tools for the creation, and dissemination of on-line educational resources at a large-scale. The workshop also aims to give a balanced mix of technical detail, general overview and societal impact. Suggested topics include: Massive on-line open courses (MOOCs); Infrastructure, design and technological issues with video capturing; Video course development and cultural issues in video learning systems; Asynchronous and synchronous web casting systems, Apps; Creative uses of video and role of rich-media in science; Particular attention will be paid towards innovation within a scientific environment. ICTP ICTP pio@ictp.it

Activity

30 Sep 2013 - 2 Oct 2013

@ ICTP

New Research Areas (Physics and Development)

Science Dissemination and On-line Certification for All | (smr 2487)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (EKLUND Lab.)

Secretary: P. Wardell

Organizer(s): E. Canessa, C. Fonda, M. Zennaro (SDU/ICTP). ICTP Local Organizer: E. Canessa

Cosponsor(s): Co-sponsored by TWAS

Support E-Mail: smr2487@ictp.it

Europe/Rome INVITED LECTURERS: Roger Webb (University of Surrey, England), Chris Jeynes (University of Surrey, England), Nuno Barradas (Instituto Superior Técnico, Portugal). TOPICS TO BE COVERED: Introduction to accelerator based techniques. Elemental and isotopic analysis and depth profiling. Heavy ions: probing the entire periodic table. Sensitivity and resolution. Total IBA: synergistic treatment of data from multiple IBA techniques. Learning and using state of the art codes to affect the IBA analyses. Pitfalls in IBA data analysis. Calculation of uncertainties in IBA. Beyond Elemental Analysis; MeV-SIMS, High resolution PIXE. Heavy Ion PIXE – the complement to MeV-SIMS. TO ALL PARTICIPANTS: - Participants are encouraged to bring their laptop as the spectrum evaluation software will be installed onto them. - "Spectrum-Clinic": The Lecturers will provide help in the evaluation of complex spectra measured by the Participants. Please feel free to bring and share your scientific problems during the course. ICTP ICTP pio@ictp.it

Activity

30 Sep 2013 - 4 Oct 2013

@ ICTP

New Research Areas (Education, Physics and Development)

Joint ICTP-IAEA Workshop on "Advanced Ion Beam Techniques: Imaging and Characterisation with MeV ions" | (smr 2488)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Giambiagi Lecture Hall)

Secretary: K. Mabilo

Organizer(s): Aliz Simon (NAPC/Physics Section) and C. Tuniz (ICTP)

Support E-Mail: smr2488@ictp.it

Seminar

30 Sep 2013

@ ICTP

Mathematics

Shadowing in Dynamical Systems (V)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Speaker(s): Sergei Pilyugin (St. Petrsburg State University)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Seminar

30 Sep 2013

@ ICTP

Regulation of Cellular Processes: From Pathways to Multi-Cell Systems

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Oppenheimer Meeting Room

Speaker(s): Somdatta Sinha (Computational Biology Group, Department of Biological SciencesIndian Institute of Science Education & Research (IISER) Mohali, India)

Support E-Mail: chelaf@ictp.it

Seminar Start Time: 16:30

Hosted Activity

1 Oct 2013 - 2 Oct 2013

@ Trieste - Italy

NACLIM Annual Meeting 2013 | (smr H338)

Room: LB (Main Lecture Hall)

Seminar

1 Oct 2013

@ ICTP

Mathematics

Shadowing in Dynamical Systems (I)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Sergei Pilyugin (St. Petersburg State University, Russia)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Europe/Rome Abstract. The isotropy and homogeneity of the cosmic microwave background (CMB) favors "scalar driven" early Universe inflationary models. Non-scalar fields, and in particular gauge fields, are on the other hand commonplace in all high energy particle physics models proposed to be at work at the upper bound on energy scale of inflation set by the current CMB observations. In this review we consider the role and consequences, theoretical and observational, that gauge fields can have during inflationary era. Gauge fields may be turned on in the background during inflation, or may become relevant at the level of cosmic perturbations. There have been two main class of models with gauge fields in the background, models which show violation of cosmic no-hair theorem and those which lead to isotropic FLRW cosmology, respecting the cosmic no-hair theorem. Models in which gauge fields are only turned on at the cosmic perturbation level, may source primordial magnetic fields. We also review specific observational features of these models on the CMB and/or the primordial cosmic magnetic fields. Our discussions will be mainly focused on the inflation period, with only a brief discussion on the post inflationary (p)reheating era. ICTP ICTP pio@ictp.it

Seminar

1 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Gauge fields and inflation

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Azadeh MALEKNEJAD (IPM, Tehran, Iran)

Seminar Start Time: 17:30

Activity

2 Oct 2013 - 5 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics

From Majorana to LHC: Workshop on the Origin of Neutrino Mass | (smr 2478)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Kastler Lecture Hall)

Secretary: R. Sain

Organizer(s): F. Ferroni, C. Leonidopoulos, F. Nesti, G. Raffelt, G. Senjanovic, F. Vissani

Support E-Mail: smr2478@ictp.it

Seminar

2 Oct 2013

@ ICTP

Mathematics

Shadowing in Dynamical Systems (II)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Sergei Pilyugin (St. Petersburg State University)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Seminar

4 Oct 2013

@ ICTP

Mathematics

Shadowing in Dynamical Systems (III)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Sergei Pilyugin (St. Petersburg State University)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Activity

7 Oct 2013 - 11 Oct 2013

@ ICTP

Earth System Physics

Joint ICTP-IAEA Advancing Modelling of Climate, Land-use, Energy and Water (CLEW) Interactions | (smr 2490)

Address: Strada Costiera, 11 34151 - Trieste (Italy)

Room: Leonardo da Vinci Building (L. Stasi Seminar Room)

Secretary: E. Brancaccio

Organizer(s): Directors: T. Alfstad & M. Nguyen, IAEA - Vienna; ICTP Local Organizer: A. Tompkins.

Support E-Mail: smr2490@ictp.it

Activity

7 Oct 2013 - 11 Oct 2013

@ Guatemala - Guatemala

School on Advanced Techniques on Radiotherapy, IMRT, IGRT and VMAT | (smr 2513)

Secretary: K. Mabilo

Organizer(s): M. Ixquiac, M. Ixquiac-Cabrera (Guatemala), L. Bertocchi (ICTP). ICTP Local Organizer: J. Niemela

Support E-Mail: smr2513@ictp.it

Europe/Rome The Abdus Salam International Centre for Theoretical Physics (ICTP) in collaboration with the University Félix Houphouët-Boigny, Abidjan Cocody are organising the "Capacity Building Workshop on Modelling of Regional Climate and Air Quality for West Africa", to be held from 07 - 11 October 2013 in Abidjan, Côte d'Ivoire. West Africa is one of the most important aerosols source in World due to the mixing of dust and combustion particles present into its atmosphere. These particles interact with regional climate and influence the regional air quality. So it appears important to reinforce the regional capacities about Regional climate studies and air quality monitoring. The goals of this workshop are to facilitate cooperation initiative with ICTP and to develop network for ideas and expertise exchange. Secretariat: "Capacity Building Workshop on Modelling of Regional Climate and Air Quality for West Africa" c/o SMR 2392 - ICTP Strada Costiera 11 I-34151 Trieste, Italy Telefax: +39-040-22407455 E-mail: smr2392@ictp.it ICTP Home Page: http://www.ictp.it/ Abidjan - Cote d'Ivoire ICTP pio@ictp.it

Activity

7 Oct 2013 - 11 Oct 2013

@ Abidjan - Cote d'Ivoire

Capacity Building Workshop on Modeling of Regional Climate and Air Quality for West Africa | (smr 2392)

Secretary: K. Mabilo

Organizer(s): A. Konare, F. Giorgi, F. Solmon

Support E-Mail: smr2392@ictp.it

Seminar

7 Oct 2013

@ ICTP

Mathematics

Shadowing in Dynamical Systems (IV)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Sergei Pilyugin (St. Petersburg State University)

Support E-Mail: math@ictp.it

Seminar Start Time: 16:00

Europe/Rome This period rich with experimental data releases is a great motivation for a focused workshop which brings together experimental and theoretical community, both in astro-particle and dark matter indirect searches, with a main motivation to form a "clean thought" on the topics, and an updated outlook on future directions. Questions as: "where do we go from here?" will need to be addressed, covering basically the physics case and experimental ideas for the next generation in gamma - CR astroparticle studies, relevant for DM searches. ICTP ICTP pio@ictp.it

Activity

8 Oct 2013 - 11 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics

Seminar on Disorder and strong electron correlations: "Probing complexity in aqueous systems"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Ali Ahmed HASSANALI (ICTP)

Seminar Start Time: 12:30

Seminar

10 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Lifshitz-AdS vacua, hyper-scaling violation and entanglement entropy

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Harvendra SINGH (Saha Institute of Nuclear Physics, Kolkata)

Seminar Start Time: 17:30

Seminar

11 Oct 2013

@ ICTP

Mathematics

Non hyperbolic shadowing

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Sergei Pilyugin (St. Petersburg State University)

Support E-Mail: math@ictp.it

Seminar Start Time: 17:00

Europe/Rome Abstract. I will explain the spectator scenario and show its advantages compared to the curvaton scenario, under the latest Planck constraints. The spectator scenario generates a smaller non-Gaussianity, negligible isocurvature perturbations, and less tuning. It agrees well with the current Planck data in the visible sector inflation setup, as an example. It also explains the CMB dipole asymmetry with a brief fast roll phase. I will close the talk by proposing the CMB power multipoles, as an alternative approach independent of the CMB dipole asymmetry model. ICTP ICTP pio@ictp.it

Seminar

11 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

A new mechanism for curvature perturbations

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Lingfei WANG (Lancaster University, UK)

Seminar Start Time: 17:30

Activity

14 Oct 2013 - 18 Oct 2013

@ ICTP

Condensed Matter and Statistical Physics

Joint ICTP-SISSA String Seminars: Effective Field Theories for Hydrodynamical Systems

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Alberto NICOLIS (Columbia University, New York, USA)

Seminar Start Time: 17:00

Europe/Rome The workshop will continue the series of “Nuclear Data for Science and Technology” workshops initiated in 1999, and held at regular intervals since then. Since the late 20th century many new non-energy applications of nuclear techniques have been developed, accompanied by a growing need for new and improved nuclear data. New applications include: nuclear medicine, astrophysics, transmutation, materials analysis, thin layer activation techniques, accelerator-driven technologies, and measurements of nuclear quantities for basic science, all of which frequently require the use and understanding of charged-particle data. Ion Beam Analysis (IBA) is a powerful analytical technique that makes substantial use of nuclear data for a wide range of applications in materials science, art, archaeology, geology, surface and interface engineering as well as environmental studies. IBA exploits the interactions of rapid charged particles (from ~0.1 to a few MeV) with matter to determine the composition and structure of the surface regions of solids. Considerable effort has been devoted by the IAEA to improve the nuclear data required for this technique, resulting in the creation of the IBANDL database. The efficient application of these IBA techniques requires appropriately trained and dedicated physicists. Topics to be covered: * nuclear data and on-line retrieval systems * fundamentals of energetic particle interaction with matter, atoms and nuclei * overview of IBA techniques (RBS, ERDA, EBS, NRA, PIGE) * nuclear data for IBA – IBANDL data library * nuclear data for Particle Induced Gamma ray Emission (PIGE) * applications of IBA and PIGE in particular PARTICIPATION Scientists and students from all countries which are members of the United Nations, UNESCO or IAEA may attend the School. As it will be conducted in English, participants should have an adequate working knowledge of that language. Although the main purpose of the Centre is to help research workers from developing countries, through a programme of training activities within a framework of international cooperation, a limited number of students and post-doctoral scientists from developed countries are also welcome to attend. As a rule, travel and subsistence expenses of the participants should be borne by the home institution. Every effort should be made by candidates to secure support for their fare (or at least half-fare). However, limited funds are available for some participants who are nationals of, and working in, a developing country. Such support is available only for those who attend the entire activity. There is no registration fee. ICTP ICTP pio@ictp.it

Activity

21 Oct 2013 - 25 Oct 2013

@ ICTP

Joint ICTP-IAEA Workshop on Nuclear Data for Analytical Applications | (smr 2495)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Denardo Lecture Hall)

Secretary: Delconte/Krizmancic

Organizer(s): A. Gurbich (IPPE, Russia); P. Dimitriou (IAEA, Austria) ICTP Local Organizer: C. Tuniz

Cosponsor(s): The International Atomic Energy Agency (IAEA)

Support E-Mail: smr2495@ictp.it

Europe/Rome There has been strong interest in recent years in applying the notions of circulation regimes, weather regimes and weather types to a variety of time scales and applications, from weather forecasts to intra-seasonal anomalies to climate impacts. The spatial scales covered by diverse classification schemes range from regional to hemispheric. There has also been an interest in applying weather types to such diverse subjects as pollution concentrations and human mortality. The purpose of the workshop will be to bring together researchers who apply classification techniques to describe and verify weather forecasts, climate anomalies over a range of time scales, and applications of human dimension. The variety of mathematical and statistical techniques used will be presented, leading to cross-fertilization of techniques and methods. Topics of interest will include: • What are the common techniques used to describe large-scale circulation regimes and local weather types (e.g.cluster analysis, hidden Markov method, pdf analysis), and how are they related to each other? • How are regimes used to characterize and verify forecasts from operational forecasting centers? • How much is really understood about measuring the significance of deviations from Gaussian behavior, and the robustness of clustering / weather typing? • Will climate change lead to an alteration of the frequency of occurrence of well-define regimes, or the modification of the whole regime structure? • How can we describe coherent propagating structures, such as the Madden-Julian Oscillation (MJO) and the Monsoon intra-seasonal oscillation (ISO) in terms of regimes? “Hands-on” training sessions will be held in weather typing and circulation regime analysis, using data sets such as ERA-40 or NCEP reanalyses, and simple classification techniques which can be applied to their home regions for problems of local interest. ICTP ICTP pio@ictp.it

Activity

21 Oct 2013 - 30 Oct 2013

@ ICTP

Earth System Physics

School and Workshop on Weather Regimes and Weather Types in the Tropics and Extra-tropics: Theory and Application to Prediction of Weather and Climate | (smr 2496)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Kastler Lecture Hall)

Secretary: L. Iannitti

Organizer(s): D. Straus, F. Molteni, S. Corti, F. Kucharski. ICTP Local Organizer: F. Kucharski

Cosponsor(s): George Mason University Center for Ocean-Land-Atmosphere Studies, GMU/COLA

Support E-Mail: smr2496@ictp.it

Europe/Rome The school comprises different modules, containing lectures and practical applications. Starting with an introduction to climate modelling and different downscaling approaches, downscaling of weather extremes will be studied in detail with a comparison of statistical and dynamical approaches, followed by an introduction to methods for validating the representation of extreme events and assessing their uncertainties. ICTP ICTP pio@ictp.it

Activity

21 Oct 2013 - 31 Oct 2013

@ ICTP

2nd VALUE Training School: Statistical and Dynamical Downscaling of Extreme Events | (smr 2567)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Giambiagi Lecture Hall)

Secretary: S. Henningsen

Organizer(s): J.M. Gutierrez Llorente, D. Maraun, E. Hertig, M. Widmann. ICTP Local Organizer: E. Coppola

Support E-Mail: smr2567@ictp.it

Europe/Rome By a symbolic extension of a topological dynamical system (X,T) we mean an extension of (X,T) which is a subshift over a finite alphabet. The existence and the entropy of these extensions are related to the convergence of the metric entropy of (X,T) computed at finer and finer scales. T. Downarowicz and S. Newhouse have conjectured that any C^r with r>1 map on a compact manifold admits symbolic extensions. In this talk we will discuss the case of surface maps. ICTP ICTP pio@ictp.it

Seminar

21 Oct 2013

@ ICTP

Mathematics

Symbolic extensions for C^2 surface diffeomorphisms

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): David Burguet (Universite' de Paris 6 (Pierre et Marie Curie))

Support E-Mail: math@ictp.it

Seminar Start Time: 12:00

Seminar

21 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

A holographic path to the turbulent side of gravity

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Luis LEHNER (Perimeter Institute, Canada)

Seminar Start Time: 17:30

Europe/Rome We consider a quantum quench of the trap frequency in a system of bosons interacting through an inverse-square potential and confined in a harmonic trap (the harmonic Calogero model). We determine exactly the initial state in terms of the post-quench eigenstates and derive the time evolution of simple physical observables. Since this model possesses an infinite set of integrals of motion (IoM) that allow its exact solution, a generalised Gibbs ensemble (GGE), i.e. a statistical ensemble that takes into account the conservation of all IoM, can be proposed in order to describe the values of local physical observables long after the quench. Even though, due to the presence of the trap, physical observables do not exhibit equilibration but periodic evolution, such a GGE may still describe correctly their time averaged values. We check this analytically for the local boson density and find that the GGE conjecture is indeed valid, in the thermodynamic limit. SISSA, Santorio Building, Room 5 (Ground floor) ICTP pio@ictp.it

Seminar

22 Oct 2013

@ SISSA, Santorio Building, Room 5 (Ground floor)

Condensed Matter and Statistical Physics

Joint ICTP/SISSA Statistical Physics seminar: "Quantum quench of the trap frequency in the harmonic Calogero model"

Speaker(s): Spyros SOTIDIARIS (University of Pisa )

Seminar Start Time: 12:00

Hosted Activity

23 Oct 2013 - 25 Oct 2013

@ Trieste - Italy

PERCIVAL (Pixelated Energy Resolving CMOS Imager, Versatile and Large) Detector System | (smr H359)

Room: AGH (Lundqvist Lecture Hall)

Organizer(s): Sincrotrone Elettra

starting October 23 at lunch time and ending October 25 at lunch time.

Europe/Rome Given a finite subgroup G in SL(2, C), the classical McKay correspondence relates the representation theory of G and the cohomology of the minimal resolution of the singular surface C^2/G. I will discuss a modern formulation of this correspondence, with introductions to the relevant notions, and present the problem I am currently working on. The talk will be aimed at a general maths audience including Ph.D. students. ICTP ICTP pio@ictp.it

Seminar

23 Oct 2013

@ ICTP

Mathematics

The McKay correspondence as a variation of tensor products

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Tarig M.H. Abdelgadir (ICTP)

Support E-Mail: math@ictp.it

Seminar Start Time: 15:30

Europe/Rome In modeling electronic and optical properties of molecular materials it is of fundamental interest to estimate charge and exciton transfer couplings between molecular sites. A short review of some quantum chemical based approaches to evaluate such couplings will be presented, focusing especially on triplet exciton transfer as example. ICTP ICTP pio@ictp.it

Seminar

23 Oct 2013

@ ICTP

Condensed Matter and Statistical Physics

Informal seminar on Chemical Physics: "Charge and exciton transfer coupling in molecular materials"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Luca GRISANTI (ICTP)

Seminar Start Time: 17:30

Europe/Rome Systems in cavity or circuit QED (Quantum Electrodynamics) are extensively studied in the context of quantum information and quantum computing. In addition, studying the non-equilibrium dynamics of photons in these open quantum systems is a challenging theoretical question. Studying “versatile lattice versions of these systems” open new doors to quantum simulation, similar to ultra-cold atoms in optical lattices. In this Talk, we review our recent theoretical progress regarding (i) the development of methods to address the dynamics of driven and dissipative light-matter systems beyond the weak-coupling limit and (ii) the realization of topological phases of light in superconducting QED-circuit arrays through synthetic gauge fields. Effects of disorder will be studied. We also comment on the current experimental status in circuit QED systems. ICTP ICTP pio@ictp.it

Seminar

24 Oct 2013

@ ICTP

Condensed Matter and Statistical Physics

Seminar on Disorder and strong electron correlations "Quantum dynamics and topological phases of light in circuit-QED"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Karyn LE HUR (CPHT Ecole Polytechnique and CNRS, Palaiseau)

Seminar Start Time: 12:30

Seminar

24 Oct 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Science with AGILE and future gamma-rays telescopes

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Andrea GIULIANI (INAF, Milano)

Seminar Start Time: 18:00

Activity

28 Oct 2013 - 8 Nov 2013

@ Addis Ababa - Ethiopia

Climate and Impact Modeling for Eastern Africa: Climate, Water, Agriculture, and Health | (smr 2514)

Secretary: P. Malchose

Organizer(s): G.T. Diro (UQAM,Canada), G. Mengistu (AAU,Ethiopia) ICTP Local Organizer: A. Tompkins

Support E-Mail: smr2514@ictp.it

Hosted Activity

28 Oct 2013 - 30 Oct 2013

@ Trieste - Italy

MEADOW 2013 (Metrology, Astronomy, Diagnostics, Optics Workshop) | (smr H352)

Room: LB (Main Lecture Hall)

Organizer(s): Sincrotrone Trieste S.c.p.a.

Europe/Rome Due to experiments in cold-atomic gases, the study of quantum quenches has become an active topic of research. While many rigorous results exist for exactly solvable "free" theories, not much is known about the effect of non-linearities, especially at long times and for systems in the thermodynamic limit, where numerical studies are challenging. In this talk, in order to highlight the main questions, I will first present results for a quench in an exactly solvable theory, namely the Luttinger model. I will then present results for the effect of various non-linearities such as a commensurate periodic potential and a local back-scattering potential. I will show that the dynamics following a quench can be quite complex by being characterized by three regimes. One is a short time perturbatively accessible regime which depends on microscopic parameters, the second is an intermediate time prethermalized regime where inelastic effects are weak and correlation functions show universal scaling behavior which is quantified by a nonequilibrium generalization of the Callan-Symanzik equations. The third is a long time regime where inelastic effects become important. For the case of the commensurate periodic potential, I will show that these inelastic effects cause the system to eventually thermalize, where the thermalization time depends in a non-monotonic way on the quench amplitude. SISSA, Santorio Building, Room 129 (1st Floor) ICTP pio@ictp.it

Seminar

28 Oct 2013

@ SISSA, Santorio Building, Room 129 (1st Floor)

Condensed Matter and Statistical Physics

Joint ICTP/SISSA Statistical Physics seminar: "Quench dynamics in interacting field-theories in one-dimension"

Speaker(s): Aditi MITRA ( New York University )

Seminar Start Time: 14:00

Europe/Rome Abstract. We construct topological defects generating non-abelian T-duality for isometry groups acting without isotropy. We find that these defects are given by line bundles on the correspondence space with curvature which can be considered as a non-abelian generalization of the curvature of the Poincar\`{e} bundle. We show that the defect equations of motion encode the non-abelian T-duality transformation. The Fourier-Mukai transform of the Ramond-Ramond fields generated by the gauge invariant flux of these defects is studied. We show that it provides elegant and compact way of computation of the transformation of the Ramond-Ramond fields under the non-abelian T-duality. ICTP ICTP pio@ictp.it

Seminar

29 Oct 2013

@ ICTP

Informal seminar on Statistical Physics: "Statistical mechanics of multiplex networks"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Ginestra BIANCONI (Queen Mary University of London )

Seminar Start Time: 16:00

Activity

4 Nov 2013 - 8 Nov 2013

@ Cape Town - South Africa

Condensed Matter and Statistical Physics , New Research Areas (Renewable Energies, Physics and Development)

Regional Workshop on Materials Science for Solar Energy Conversion | (smr 2515)

Secretary: D. Sauleek

Organizer(s): D. Egbe (Austria), M. Maaza (South Africa), R. Gebauer (ICTP), N. Seriani (ICTP). ICTP Local Organizer: R. Gebauer

Cosponsor(s): In collaboration with: African Network for Solar Energy (ANSOLE) and Network for Nanoscience and Nanotechnology in African (NanoAfNet) co-sponsors: National Resarch Foundation (NRF), National Research Foundation - iThemba Labs. (Laboratory for Accelerator Based Sciences), University of South Africa (UNISA), Republique Francaise - Ministere des Affaires Etrangeres et Europeennes, Department of Science and Technology, African Laser Centre (ALC) and Third World Academy of Sciences (TWAS)

Support E-Mail: smr2515@ictp.it

Hosted in: iThemba Labs.National Research Foundation (SA), Cape Town, South Africa

Activity

5 Nov 2013 - 8 Nov 2013

@ ICTP

Condensed Matter and Statistical Physics

Conference on Friction and Energy Dissipation in Man-made and Biological Systems | (smr 2497)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Kastler Lecture Hall)

Secretary: S. Radosic

Organizer(s): E. Meyer (Switzerland), M. Urbakh (Israel), ICTP Local Organizer: E. Tosatti

Cosponsor(s): Co-sponsored by: ERC Advanced Research Grant N. 320796; MODPHYSFRICT (Modeling the Physics of (Nano) Friction) (through SISSA); The Swiss Nanoscience Institute, University of Basel; US-National Science Foundation (through ICAM, the Institute of Complex Adaptive Matter)

Support E-Mail: smr2497@ictp.it

Europe/Rome The study of the dynamics of thermally isolated many-body systems offers a unique opportunity to address the role of universality in nonequilibrium quantum phenomena. In this talk I will discuss recent results concerning the statistics of the work and of other observables in spin chains and bosonic systems out of equilibrium. I will show that the statistics of the work at low energies for spin chains (or bosonic systems) subject to a generic local or global variation of the transverse field is independent on the detail of the protocol, an example of universal behaviour both in time and space. I will similarly show that the statistics of excitations can be used to discuss universality and detect efficiently dynamical phase transitions. ICTP ICTP pio@ictp.it

Seminar

5 Nov 2013

@ ICTP

Condensed Matter and Statistical Physics

Joint ICTP/SISSA Statistical Physics seminar: "Statistics of observables and universal behaviour in quantum quenches and dynamical phase transitions"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Pietro SMACCHIA (SISSA)

Seminar Start Time: 11:30

Europe/Rome Introduction to Nakajima quiver varieties I: Given a for a given quiver without loops, we will aim to state that certain homology groups of Nakajima quiver varieties admit an action of the underlying Kac-Moody algebra. We will define or sketch the terms there in and do the examples corresponding to the Dynkin diagrams of type A1 and A2. ICTP ICTP pio@ictp.it

Seminar

6 Nov 2013

@ ICTP

Mathematics

Reading seminar on quiver representations and Nakajima quiver varieties

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Conference on Frontiers of Condensed Matter Physics | (smr 2498)

Address: Strada Costiera, 11 34151 - Trieste (Italy)

Room: Leonardo Building (Main Lecture Hall)

Secretary: R. del Rio

Organizer(s): A. Fasolino (The Netherlands), M. Parrinello (Switzerland), G. Kotliar (USA), G. Santoro (SISSA), M. Capone (CNR). ICTP Local Organizer: S. Scandolo

Cosponsor(s): Consorzio per la Fisica - Trieste and International School for Advanced Studies (SISSA)

Support E-Mail: smr2498@ictp.it

Activity

11 Nov 2013 - 22 Nov 2013

@ ICTP

International Training Workshop on FPGA Design for Scientific Instrumentation and Computing | (smr 2499)

Address: Via Grignano, 9 34151 - Trieste (Italy)

Room: Adriatico Guest House (Giambiagi Lecture Hall)

Secretary: S. Tanaskovic

Organizer(s): A. Cicuttin, M.L. Crespo (ICTP MLab, Trieste), J.D. Dondo (Spain). ICTP Local Organizer: M.L. Crespo

Support E-Mail: smr2499@ictp.it

Europe/Rome Activity Secretariat: Telefax: +39-040-224163  Telephone: +39-040-2240346 smr2516@ictp.it DEADLINE FOR APPLICATION: 9 AUGUST 2013 (Due to logistic laboratory reasons this activity has "limited participation" Stellenbosch - South Africa ICTP pio@ictp.it

Activity

11 Nov 2013 - 22 Nov 2013

@ Stellenbosch - South Africa

Condensed Matter and Statistical Physics

Advanced School on Synchrotron Radiation Techniques and Nanotechnology: A Synergic Approach to Life Sciences and Medicine | (smr 2516)

Room: Cape Town Campus, Stellenbosch, South Africa

Secretary: D. Sauleek

Organizer(s): L. Casalis, S. Onesti (Sincrotrone Trieste), A. Laio (SISSA), G. Scoles (Udine), J. Niemela (ICTP), M. Maaza (Cape Town), I. Parker (Cape Town), W.-D. Schubert (Western Cape). ICTP Local Organizer: J. Niemela

Cosponsor(s): International Union of Crystallography (IUCr), International Union of Biochemistry & Molecular Biology (IUBMB), Elettra-Sincrotone Trieste S.C.p.A., International School for Advanced Studies (SISSA) University of South Africa (UNISA), Department of Science & Technology (DST), National Research Foundation (NRF), iThemba Laboratory for Accelerator Based Sciences - NRF, African Laser Centre (ALC), French Embassy. In cooperation with: Universitas Studiorum Utinensis (USU), Network for Nanoscience & Nanotechnology in Africa (NanoAfNet), South African Institute of Physics, Third World Academy of Sciences (TWAS).

Support E-Mail: smr2516@ictp.it

Hosted in:iThemba Labs. - National Research Foundation, Cape Town Campus, Stellenbosch, South Africa

Activity

11 Nov 2013 - 15 Nov 2013

@ Islamabad - Pakistan

First ICTP-NCP International College on Plasma Physics | (smr 2565)

Room: NCP

Organizer(s): S.M. Mahajan (USA), Z. Yoshida (Japan), J. Niemela (Italy), H. Saleem (Pakistan)

Support E-Mail: plasma2013@ncp.edu.pk

plasma2013@ncp.edu.pk

Europe/Rome Abstract. The discovery of the accelerating expansion of the Universe is motivating an impressive amount of theoretical and observational activity. After briefly reviewing the problems and challenges of "Dark Energy", I will focus on recent and ongoing works where a unifying description of dark energy and modified gravity is proposed, that is inspired by the Effective Field Theory (EFT) of Inflation formalism. By extending such a framework to late time cosmology one can write the most general action for cosmological perturbations in the presence of an additional scalar degree of freedom. I will focus on a few operators that are quadratic in the perturbations and which appear in non-minimally coupled scalar-tensor gravity and "Galileon" theories and describe the mixing between gravity and the scalar degree of freedom that such operators produce. I will also discuss the present observational constraints and forecasts for future experiments such as EUCLID. ICTP ICTP pio@ictp.it

Seminar

12 Nov 2013

@ ICTP

High Energy Cosmology and Astroparticle Physics,Cosmology

Dark energy: an effective field theory approach

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Federico PIAZZA (Univ. Paris VII, France)

Seminar Start Time: 16:30

Seminar

13 Nov 2013

@ ICTP

Regulation of Cellular Processes: From Pathways to Multi-Cell Systems

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Oppenheimer Meeting Room

Speaker(s): Somdatta Sinha (Computational Biology Group, Department of Biological SciencesIndian Institute of Science Education & Research (IISER) Mohali, India )

Support E-Mail: chelaf@ictp.it

Seminar Start Time: 15:30

Europe/Rome I will review the progress our group has made on the study of topological insulators in the last year, with an emphasis on some algebraic and geometric results. ICTP ICTP pio@ictp.it

Seminar

14 Nov 2013

@ ICTP

Condensed Matter and Statistical Physics

Seminar on Disorder and strong electron correlations: "Fractional topological insulators: A progress report"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Christopher MUDRY (Paul Scherrer Institute, Villigen)

Seminar Start Time: 11:00

Activity

15 Nov 2013 - 16 Nov 2013

@ ICTP

First ICTP Expert Meeting on Scientific Applications of FPGA Technology: Challenges and Opportunities | (smr 2399-2)

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Adriatico Guest House Denardo Lecture Hall

Hosted Activity

18 Nov 2013 - 20 Nov 2013

@ Trieste - Italy

ICGEB 2nd Post-EURASNET Symposium "RNA Alternative Splicing" | (smr H325)

Room: AGH (Kastler Lecture Hall)

Organizer(s): ICGEB

Europe/Rome I will discuss recent developments for the Anderson model on the Bethe lattice. In particular I will present evidence in favour of a non-ergodic, extended phase before the Anderson transition sets in. ICTP ICTP pio@ictp.it

Seminar

19 Nov 2013

@ ICTP

Condensed Matter and Statistical Physics

Joint ICTP/SISSA Statistical Physics seminar: "Anderson model on the Bethe lattice, new results on an old problem"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Antonello SCARDICCHIO (ICTP)

Seminar Start Time: 11:30

Colloquium

19 Nov 2013

@ ICTP

The SIMP Miracle

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Euler Lecture Hall

Speaker(s): Jay WACKER (SLAC, USA)

Seminar Start Time: 16:30

Europe/Rome In this presentation, our recent studies on future generation thin film solar cells and hydrogen energy materials will be highlighted. The presence of di-vacancies in hydrogenated amorphous silicon (a-Si:H) was observed by a set of complementary techniques. These defects play an important role in the instability of a-Si:H layers against light-soaking (Staebler-Wronski effect). Further, colloidal PbSe nanoparticles were investigated by positron annihilation spectroscopies and ab-initio calculations, shedding light on their surface composition and electronic structure. Finally, recent studies on the impact of nanoscale particle size, surface energies and the presence of vacancies on hydrogen storage materials and hydrogen sensors are discussed. ICTP ICTP pio@ictp.it

Seminar

20 Nov 2013

@ ICTP

Condensed Matter and Statistical Physics

Informal seminar on Chemical Physics: "Nanoscale structure, surfaces and vacancies in sustainable energy materials: Interplay between experimental and ab-initio approaches"

Address: Strada Costiera, 11 I - 34151 Trieste (Italy)

Room: Leonardo da Vinci Building Luigi Stasi Seminar Room

Speaker(s): Stephan W.H. EIJT (Delft University of Technology )

Seminar Start Time: 16:30

Europe/Rome A few years after the first observation of Bose-Einstein condensation, quantum gases of photons in suitably designed photonic microstructures are establishing themselves as flexible and powerful platforms for the study of many-body physics in a completely novel context. In this talk, I will start by reviewing the first experiments that have demonstrated superfluid hydrodynamics effects in dilute photon fluids. When a localized defect is inserted in the flow, a wide range of behaviors have been observed depending on the flow speed, from superfluid flow to super-sonic Mach cones, to the nucleation of topological excitations such as solitons and vortices. I will then proceed with the presentation of more recent work on synthetical gauge fields for photons and, more generally, geometrical and topological effects in quantum fluids of light in the presence of periodic trapping potentials with different geometries. Perspectives towards the generation of strongly correlated photon gases in the presence of strong optical nonlinearities will be finally sketched, with a special attention to quantum Hall liquids of light and the detection of their exotic quasi-particle excitations. ICTP ICTP pio@ictp.it

Seminar

21 Nov 2013

@ ICTP

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Activity

Condensed Matter and Statistical Physics

16th International Workshop on Computational Physics and Materials Science: Total Energy and Force Methods | (smr 2440)

Seminar

High Energy Cosmology and Astroparticle Physics,Cosmology

Astrophysical probes for Dark Matter searches

Activity

Earth System Physics

Targeted Training Activity (TTA): Intraseasonal Monsoon Predictability and Prediction | (smr 2507)

Activity

Condensed Matter and Statistical Physics

Hands-on Tutorial on Electronic Structure Computations | (smr 2522)

Seminar

Joint ICTP/SISSA Statistical Physics seminar: "Corner contribution to percolation cluster numbers"

Seminar

High Energy Cosmology and Astroparticle Physics,Cosmology

Probing the Physics of Inflation

Seminar

Seminar on Disorder and strong electron correlation: "Graphene with vacancies: Density of states, transport, multifractality"

Seminar

Mathematics

Partitions and modular forms

Seminar

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

On quantum corrected Kaehler potentials in F-theory

Seminar

Joint ICTP/SISSA Statistical Physics seminar: "Dynamics of highly excited many-body states -- diffusion and localization at finite entropy"

Seminar

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Effective Field Theories vs. Holography for Superfluids and Superconductors

Seminar

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Unitarity and infall: black holes, fuzzballs and firewalls

Activity

Preparatory School to the Winter College on Optics | (smr 2442)

Activity

Condensed Matter and Statistical Physics

School on Modern Topics in Condensed Matter Physics | (smr 2504)

Seminar

The Physics of Life: Searching for Theories

Seminar

Joint ICTP/SISSA Statistical Physics seminar: "Overview of 1D tensor networks and their application to quantum phase transitions"

Activity

Winter College on Optics: Trends in Laser Development and Multidisciplinary Applications to Science and Industry | (smr 2443)

Activity

Workshop on Applications of Wireless Technologies | (smr 2505)

Seminar

Joint ICTP/SISSA Informal seminar on Statistical Physics : "Entropy barriers and glass-like behaviour in martensitic models without extrinsic disorder"

Seminar

Joint ICTP/SISA Statistical Physics seminar: "Entanglement spectra: A novel spectroscopic tool to investigate quantum many body wave functions"

Seminar

Seminar on Disorder and strong electron correlations: "Bose-Einstein condensed gas with equal Rashba and Dresselhaus spin-orbit coupling"

Seminar

Joint ICTP/SISSA Statistical Physics seminar: "Clifford algebra for complex problems"

Seminar

Mathematics

Stability at infinity and Hurwitz vector fields

Seminar

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Joint ICTP-SISSA String Seminars: Non-geometric Strings - Differential Geometry of Lie-algebroids

Seminar

High Energy Cosmology and Astroparticle Physics,Strings and Higher Dimensional Theories

Joint ICTP-SISSA String Seminars: U(1) groups and G-flux in F-theory compactifications with multiple sections

Seminar

Seminar on Disorder and strong electron correlations: "Critical and thermodynamic properties of lattice bosons"

Seminar