CMSP

Europe/Rome 2022-05-24 11:00:00 2022-05-24 12:00:00 CMSP Seminar (Joint ICTP/SISSA Statistical Physics): "Thermodynamic potential" for a class of non-equilibrium systems Tridib Sadhu (TIFR Mumbai) Abstract: Although basic equilibrium concepts like state variables, thermodynamic potentials, etc do not straightforwardly extend for non-equilibrium states, an analogue of Landau free energy characterising macroscopic fluctuations could be defined based on a mathematical theory of large deviations. I shall present a few old and new exact results for such a quantity in a class of non-equilibrium transport models. These are interacting classical many-body systems with relations to quantum spin chains. Our new results show that similar to a thermodynamic potential, these free-energy-analogues are robust against variations of coupling with external baths, thereby strengthening the possibility of a thermodynamic description for non-equilibrium states. I shall explain how these exact results are derived using a tilted operator formalism and a matrix-product-representation for a specific integrable model [1]. Then, I shall recover these results using a minimal action solution of a hydrodynamic field theory [2], which applies to a wider class of systems, including those which are non-integrable. Refs. [1] Derrida, Hirschberg, Sadhu, 182 (2021) J Stat Phys; [2] in preparation. via Zoom ICTP pio@ictp.it 24 May 2022

Europe/Rome 2022-05-16 08:00:00 2022-05-20 22:00:00 Quantum Microwaves, Heat Transfer and Many-Body Physics in Superconducting Devices | (smr 3704) IMPORTANT: On Sunday, 15 May at 18:30 there will be a Welcome reception. All participants are cordially invited to attend. An ICTP Hybrid Meeting. You can submit your application for participation in presence or online. This conference will be a venue for bringing together world-leading experts, young researchers, and new-comers to discuss and to tackle modern challenges in mesoscopic superconducting devices. Mesoscopic superconducting devices open up bright perspectives not only for current and future developments in quantum technologies but also to address fundamental physics. For example, a key for promising applications is utilizing the interplay between superconducting charge transport and energy dissipation in the form of microwave radiation and heat. Superconducting circuits are engineered to serve as bright sources of quantum microwave light and for the phase-coherent transfer of heat. From a different viewpoint, superconducting devices have been recognized as tools to realize, to probe and to control non-locality and topology in charge transport phenomena as well as strong correlations in many-body systems.   The conference will provide a bridge of shared expertise between communities aiming from different angles at novel superconducting phenomena and quantum technologies. Topics include: •    Sources and detection of quantum microwave light •    Driven dissipative Josephson circuits •    Many-body physics with novel Josephson devices and material designs •    Modern Josephson transport and quantum phase slips •    Heat transfer in superconducting devices Speakers: M. ABDI, Isfahan University of Technology, Iran C. ALTIMIRAS, CEA Saclay-Paris, France A. ARMOUR, The University of Nottingham, UK L. ARRACHEA, Universidad de Buenos Aires, Argentina C. AST, Max Plank FKF Stuttgart, Germany D. BASKO, Institut Neel, Grenoble, France, France W. BELZIG, University of Konstanz, Germany N. BOURLET, Sherbrooke University, Canada, Canada A. CLERK, University of Chicago, USA P. DELSING, Chalmers University of Technology, Sweden, Sweden Z. DOU, Universite Paris Sud, Paris, France, France F. GIAZOTTO, Scuola Normale Superiore, Italy C. GIRIT, CEA Saclay-Paris, France M. GRIFONI, University of Regensburg, Germany P. HAKONEN, Aalto University, Finland F. HASSLER, RWTH Aachen University, Germany E. PALADINO, University of Catania, Italy H. HUTIN, Ecole Normale Supérieure Lyon, France N. KATZ, Hebrew University of Jerusalem, Israel T. KONTOS, Universite Paris Sud, France A. LEVY YEYATI, Universidad Autonoma de Madrid, Spain M. MÖTTÖNEN, Aalto University, Finland J. PEKOLA, Aalto University School of Science, Finland M. PINO GARCIA, Institute of Fundamental Physics CSIC Madrid, Madrid I. POP, KIT, Physikalisches Institut, Germany H. POTHIER, Commissariat a L''Energie Atomique Saclay - Spec, France M. SÁNCHEZ, Bariloche Atomic Center, Argentina F. TADDEI, NEST NANO-CNR & Scuola Normale Superiore, Italy E. TURECI, Princeton University, USA A. USTINOV, Kfa - Forschungszentrum Julich Gmbh, Germany D. VION, CEA Saclay-Paris, France S. VIRALLY, Sherbrooke University, Canada, Canada A. WALLRAFF, ETH Zurich, Switzerland, Switzerland F. WILHELM-MAUCH, University of Saarbrücken, Germany C. WILSON, University Waterloo, Canada 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. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. ICTP ICTP pio@ictp.it 16 May 2022 - 20 May 2022

Europe/Rome 2022-05-16 08:00:00 2022-05-20 22:00:00 Wannier 2022 Summer School | (smr 3705) An ICTP Hybrid Meeting. You can submit your application for participation in presence or online. This 5-day school consists of lectures and hands-on sessions on a wide range of electronic-structure methods based on Wannier functions. The event targets graduate students, early-career scientists and experienced users. Wannier functions (WFs) are used to understand the nature of chemical bonding, calculate topological and geometrical quantities, efficiently interpolate band-structure properties and more. This event includes highlight talks that provide a historical and broad perspective on WFs in electronic structure, dedicated lectures to the theory and methods of WFs, as well as hands-on tutorials at the basic and advanced level. The school is designed to allow participants to join both in-person and online, and covers a wide range of complex materials properties using the software packages listed below. Topics Maximally-localized Wannier functions (Wannier90) Advanced Wannier functions methods: symmetry-adapted, SCDM, transport (Wannier90) Partly occupied Wannier functions (ASE) Tight-binding models (PythTB) Topological properties (Z2pack & WannierTools) Berry-phase properties (WannierBerri) Automated wannierisation (AiiDA) Electron-phonon coupling (EPW) Dynamical mean-field theory (TRIQS) Speakers R. ARITA, Tokyo University and RIKEN, Japan S. BECK, Flatiron Institute, USA F. GIUSTINO, UT Austin, USA L. LIN, UC Berkeley, USA N. MARZARI, EPFL, Switzerland A. MOSTOFI, Imperial College London, UK Y. NOMURA, Keio University, Japan S. PONCÉ, EPL, Belgium J. QIAO, EPFL, Switzerland R. RESTA, CNR-IOM, Italy I. SOUZA, CFM and UPV, Spain K. THYGESEN, DTU, Denmark D. VANDERBILT, Rutgers University, USA M. VERGNIORY, DIPC, Spain V. VITALE, Imperial College London, UK Q. WU, IOPCAS, China J. YATES, Oxford University, UK 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. In person participation: As regards the COVID-19 policy, we advise to follow the updated rules available on the ICTP page Access Guidelines for Visitors. The School will be followed the week after (23 - 27 May 2022) by the Wannier 2022 Developers Meeting (smr 3757), devoted to foster integration between several packages composing the Wannier software ecosystem.   ICTP ICTP pio@ictp.it 16 May 2022 - 20 May 2022

Europe/Rome 2022-05-16 08:00:00 2022-05-20 22:00:00 Machine Learning in Electronic Structure and Molecular Dynamics | (smr 3702) This is the culminating workshop of the Machine Learning (ML) in Electronic Structure (ES) and Molecular Dynamics (MD) training workshop that began in October 2021. The focus is to train African researchers in ML and its application in ES and MD. Description: A recap of the Python language, ML and Materials Databases will be made. This will be quickly followed by joint projects in materials discovery. Each day will feature hands on training sessions as well as two to three talks from experts in the eld presenting their research. Topics: • Introduction to the Python language • Introduction to Machine Learning (ML) • Databases for Materials Discovery • Machine Learning for force elds development for • MolecularDynamics(MD)Simulations • Machine Learning in Electronic Structure (ES) Speakers: O. Akin-Ojo (ICTP-EAIFR & Univ. Rwanda) J. Behler (Univ. Göttingen, Germany) M. Ceriotti (EPFL, Switzerland) B. Cheng (IST. Austria) G. Csanyi (Univ. Cambridge, U.K.) S. Cutarolo (Duke Univ. U.S.A.) S. de Gironcolli (SISSA, Trieste, Italy) L. Ghiringhelli (FHI, Berlin, Germany) A. Jain (LBNL, USA) E. Kucukbenli (Boston Univ., USA) A. Laio (SISSA, Italy) M. Parrinello (ETH, Zurich) G-M. Rignanese (UCL, Belgium) M. Scheffler (Fritz-Haber MPG, Germany Y. Shaidu (UC Berkely, U.S.A.) Kigali - Rwanda ICTP pio@ictp.it 16 May 2022 - 20 May 2022

Europe/Rome 2022-05-30 08:00:00 2022-06-03 22:00:00 Recent Progress in Thermal Transport Theory and Experiments | (smr 3711) An ICTP Virtual Meeting Thermal management is becoming more relevant nowadays in ever decreasing-size electronic and optical devices generating more heat per unit volume, and in materials used in jet engines. We have witnessed many advances in the theories of thermal transport in the past decade: discovery of new excitations, a better understanding beyond the Fourier regime, description of highly anharmonic systems are but a few examples.   Topics: Anharmonic transport at high-temperatures Solid-solid phase change materials Systematic methods for high-throughput calculations Machine-learned potentials, their speed and success in predicting thermal properties Phonon hydrodynamics, relevant excitations Electron-phonon coupling Advances in solving Boltzmann Transport Equation Amorphous and disordered systems Phonon coherence in superlattices Phonon metamaterials, phonon engineering and novel phononic devices Excitations in strongly anharmonic systems Speakers: J. ALARIA, University of Liverpool, UK S.M.V. ALLAEI, University of Tehran, Iran X. ALVAREZ, UAB, Spain A.A. BALANDIN, UC Riverside, USA M. BERNARDI, CALTECH, USA G. CASATI, University of Insubria, Italy A. CEPELOTTI, Harvard University, USA G. CHEN, MIT, USA O. DELAIRE, Duke University, USA A. DHAR, ICTS-TIFR, India K. ESFARJANI, University of Virginia, USA Z. FAN, Varian and Aalto University, Finland A. FIORENTINO, SISSA, Italy G. FUGALLO, CNRS, France M. HILKE, McGill University, Canada M. HU, University of South Carolina, USA C. HUA, ORNL, USA F. KNOOP, Linköping University, Sweden S. LEE, University of Pittsburgh, USA C. LEWENKOPF, Fluminense Federal University, Brazil B. LIAO, UC Santa Barbara, USA T. LUO, University of Notre Dame, USA I.J. MAASILTA, University of Jyväskylä, Finland F. MAURI, University of Rome La Sapienza, Italy A. MCGAUGHEY, Carnegie-Mellon University, USA C. MELIS, University of Cagliari, Italy N. MINGO, CEA, France A.J. MINICH, CALTECH, USA B. MORTAZAVI, Leibniz University Hannover, Germany L. PAULATTO, CNRS & Sorbonne University, France A. RAJABPOUR, IKU, Iran N. RAVICHANDRAN, IISc, India G. ROMANO, MIT, USA I. SAVIC, Tyndall National Institute, Ireland A. SHAKOURI, Purdue University, USA J. SHIOMI, University of Tokyo, Japan T. TADANO, NIMS, Japan Z. TIAN, Cornell University, USA S. VOLZ, CNRS, University of Tokyo, Japan J.S. WANG, National University of Singapore, Singapore Applicants are encouraged to submit poster abstracts (maximum 2). A number of abstracts will be selected for a poster session. Registration: There is no registration fee.   Online - ICTP pio@ictp.it 30 May 2022 - 3 Jun 2022