CMSP

Europe/Rome 2019-07-16 11:00:00 2019-07-16 12:00:00 Joint ICTP/SISSA CMSP Seminar - From Flocking Birds to Swarming Bacteria: A Study of the Dynamics of Active Fluids Active fluids are a novel class of non-equilibrium complex fluids with examples across a wide range of biological and physical systems such as flocking animals, swarming microorganisms, vibrated granular rods, and suspensions of synthetic colloidal swimmers. Different from familiar non-equilibrium systems where free energy is injected from boundaries, an active fluid is a dispersion of large numbers of self-propelled units, which convert the ambient/internal free energy and maintain non-equilibrium steady states at microscopic scales. Due to this distinct feature, active fluids exhibit fascinating and unusual behaviors unseen in conventional complex fluids. Here, combining high-speed confocal microscopy, holographic imaging, rheological measurements and biochemical engineering, we experimentally investigate the dynamics of active fluids. In particular, we use E. coli suspensions as our model system and illustrate three unique properties of active fluids, i.e., (i) abnormal rheology, (ii) enhanced diffusion of passive tracers and (iii) emergence of collective swarming. Using fluid mechanics and statistical mechanics tools, we develop a quantitative understanding of these interesting behaviors. Our study illustrates the general organizing principles of active fluids that can be exploited for designing “smart” fluids with controllable fluid properties. Our results also shed new light on fundamental transport processes in microbiological systems. SISSA, Via Bonomea 265 ICTP pio@ictp.it 16 Jul 2019

Europe/Rome 2019-07-29 08:00:00 2019-08-01 22:00:00 Conference on Taming Non-Equilibrium Systems: from Quantum Fluctuation to Decoherence | (smr 3316) The workshop aims at reviewing the state-of-the-art in non-equilibrium systems affected by (quantum) fluctuations and decoherence mechanisms bringing together scholars of international calibre active in diverse research communities, such as condensed matter, linear and non-linear optics, cold atoms and quantum information. The workshop aims at reviewing the state-of-the-art and propose developments in the theoretical description and experimental control of decoherence and fluctuations in an ample set of physical contexts. One of the aims of the workshop is to identify similarities and differences between decoherence in model systems, such as optomechanical cavities and open quantum systems, and non-equilibrium phenomena in complex materials. The goal is to set the roadmap to develop a universal view on how decoherence processes and quantum fluctuations govern the non-equilibrium dynamics in different systems. Topics:   Quantum materials Open quantum systems Non equilibrium quantum systems and processes Optomechanical systems Decoherence Cold Atoms Contributed talks: Limited space for contributing talks is available. Poster session: A poster session will be organized. Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. Sponsor: European Research Council (ERC): INCEPT (Grant Number: 677488) "INhomogenieties and fluctuations in quantum CohErent matter Phases by ultrafast optical Tomography" UfastU (Grant Number: 716648) "Theory of ultra-fast dynamics in correlated multi-band systems" ICTP ICTP pio@ictp.it 29 Jul 2019 - 1 Aug 2019

Europe/Rome 2019-08-12 08:00:00 2019-08-30 22:00:00 College on Energy Transport and Energy Conversion in the Quantum Regime | (smr 3318) The development of quantum technologies is closely connected to the possibility of controlling and manipulating the transport of charge, spin and energy. The aim of this activity is to integrate the communities of Statistical Mechanics, Quantum Information, Cold Atoms and Condensed Matter Physics to understand fundamental aspects of this problem. Topics: Quantum thermoelectricity, theory and experiment Quantum energy dissipation Maxwell Daemons in quantum systems Quantum fluctuation-dissipation relations Quantum thermodynamics in electronic circuits Quantum Floquet engineering Quantum thermodynamics and information theory Transport and thermodynamics in periodically driven electron systems Topological energy conversion Thermal transport and thermoelectricity in topological quantum matter Thermal transport in topological systems Quantum thermal machines Many-body effects in thermal transport Lecturers courses: Giuliano Benenti, Italy Rosario Fazio, Italy Rosa López, Spain Laurens Molenkamp, Germany Juan Parrondo, Spain Jukka Pekola, Finland Anatoli Polkovnikov, USA Ferdinand Schmidt-Kaler, Germany Janine Splettstoeser, Sweden Speakers workshop: Joel Moore, USA Gil Refael, USA Frederick Pierre, France Francesco Giazotto, Italy Christian Schmiegelow, Argentina Christian Glattli, France Clemens Winkelmann, France Heiner Linke, Sweden Sebastian Diehl, Germany Robert Whitney, France Massimiliano Esposito, Luxembourg Raam Uzdin, Israel Ewelina Hankiewicz, Germany David Sanchez, Spain Yuval Gefen, Israel Fabio Taddei, Italy Peter Samuelsson, Sweden Anton Ramsak, Slovenija Michele Campisi, Italy Geraldine Haack, Switzerland Dario Poletti, Singapore Marcos Rigol, USA Grants: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. ICTP ICTP pio@ictp.it 12 Aug 2019 - 30 Aug 2019

Europe/Rome 2019-10-21 08:00:00 2019-10-25 22:00:00 Conference on Signatures of Topology in Condensed Matter | (smr 3330) This conference will focus on the observable signatures of topology in electronic, photonic, phononic, and atomic systems, with participation by leading theorists and experimentalists. The conference will offer an excellent opportunity for cross-fertilisation of ideas and an exciting learning experience for early career researchers. TOPICS: Topological insulators and superconductors Dirac and Weyl semimetals Time-dependent and non-equilibrium topological systems Photonic systems Cold atoms Phononic systems Electronic-structure and ab-initio calculations Transport properties of topological systems Experimental detection of topological properties Physics of unconventional surface states Interaction and disorder effects in topological systems Hetero- and hybrid-structures Electrodynamics in topological materials Quantum-field-theory approaches Applications and devices SPEAKERS: A. ALTLAND, University of Cologne, Germany P. ARMITAGE, Johns Hopkins University, USA L. ARRACHEA, Universidad NSM, Buenos Aires, Argentina C. W. J. BEENAKKER, Leiden University, The Netherlands A. BURKOV, University of Waterloo, Canada F. BURNELL, University of Minnesota, USA (to be confirmed) R. CLAESSEN, University of Würzburg, Germany D. COBDEN, University of Washington, USA D. CULCER, University of New South Wales, Australia K. FLENSBERG, University of Copenhagen, Denmark M. FRANZ, University of British Columbia, Canada F. GIAZOTTO, NEST NANO-CNR, Pisa, Italy M. KAWASAKI, University of Tokyo, Japan D. LOSS, University of Basel, Switzerland A. H. MACDONALD, The University of Texas at Austin, USA L. MOLENKAMP, University of Würzburg, Germany J. MOODERA, MIT, Cambridge, USA C. MORAIS SMITH, Utrecht University, The Netherlands S.-Q. SHEN, University of Hong Kong H. TAKAGI, MPI for Solid State Research, Stuttgart, Germany K. VON BERGMANN, Hamburg University, Germany S. A. YANG, Singapore University of Technology and Design A. YAZDANI, Princeton University, USA U. ZUELICKE, Victoria University of Wellington, New Zealand GRANTS: A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries. There is no registration fee. ICTP ICTP pio@ictp.it 21 Oct 2019 - 25 Oct 2019