Scientific Calendar Event



Description
Virtual Workshop
The workshop will be held on June 8, June 12 and June 16, 2020
10/06 sessions are postponed to 16/06 in light of the Black Lives matter strike

Abstract
Hydrodynamics plays a crucial role in many branches of physics. It can be regarded as an effective field theory for the dynamics of slow conserved modes of many-body systems that emerge at large scales, describing the evolution from local to global equilibrium. Recently, the notion of hydrodynamics was generalized to describe the behavior of quantum integrable systems that are characterized by an infinite number of conserved quantities. This workshop will gather a core group of outstanding young scientists, and will aim to set new directions for future research in the field.

Workshop Description
The last decade witnessed an intense combined effort of both experimentalists and theorists aimed at understanding quantum matter out of equilibrium. The main research themes concerned the identification of universal structures emerging at finite times and the description of the eventual relaxation. In systems characterised by an extensive number of conservation laws (integrable systems, including many paradigmatic models of quantum many-body physics such as the Hubbard, Heisenberg, and Lieb-Liniger models), a rich set of hydrodynamic laws was found to emerge. These laws, which have been grouped under the name of “Generalised Hydrodynamics” (GHD), offered a variety of applications ranging from the study of transport in simple materials to the quantitative description of cold-atom experiments. Generalised Hydrodynamics is now understood as a wide-ranging framework encompassing both quantum and classical systems, and has fostered surprising new developments in integrability, statistical mechanics and fluid theory.

In gathering together a core group of outstanding scientists, we aim to set new directions for future research in the field. For instance, one of the cutting edges of the field is to understand how the hydrodynamic regime is reached. Moreover, a general understanding of anomalous transport properties is missing, higher-order gradient corrections needed to capture low-frequency transport remain mysterious, and the role of the inevitable integrability-breaking perturbations present in any experiment is poorly understood. Those exciting challenges call for the development of new mathematical techniques to describe out-of-equilibrium phenomena in strongly interacting low-dimensional quantum systems, and integrable systems provide the ideal testbed to develop such ideas.

Topics:
  • Emergence of GHD
  • Diffusion and higher-order corrections
  • Anomalous transport
  • Hydrodynamics of integrability breaking
  • Low temperature hydrodynamics, quantum corrections
  • Bose gas experiments
  • Entanglement dynamics
  • Cellular automata 
Speakers:
A. BASTIANELLO, University of Amsterdam, The Netherlands
V. BULCHANDANI, UC Berkeley, USA
A. CORTES-CUBERO, University of Amsterdam, The Netherlands
J. DE NARDIS, Ghent University, Belgium
J. DUBAIL, Université de Lorraine, France
M. FAGOTTI, Université Paris-Saclay, France
S. GOPALAKRISHNAN, CUNY, USA
K. KLOBAS, University of Ljubljana, Slovenia
M. MEDENJAK, ENS Paris, France
F. MØLLER, Technische Universität Wien, Austria
L. PIROLI, Max Planck Institute Garching, Germany
P. RUGGIERO, Université de Genève, Switzerland
T. YOSHIMURA, Tokyo Institute of Technology, Japan
Go to day
  • Monday, 8 June 2020
    • 14:45 - 15:00 Welcoming remarks
    • 15:00 - 16:30 Session I: Emergence of GHD
      • 15:00 Collision rate ansatz for quantum integrable systems 30' ( Virtual )
        Speaker: Takato Yoshimura (Tokyo Institute of Technology)
        Material: Slides Video
      • 15:30 GHD as the first order in a thermodynamic form factor expansion 30' ( Virtual )
        Speaker: Axel Cortes-Cubero (University of Amsterdam)
        Material: Slides Video
      • 16:00 Discussion rooms 30' ( Virtual )
        Discussion session I: Herbert Spohn
        Discussion session II: Marton Kormos
    • 16:30 - 19:00 Session II: Anomalous transport
      • 16:30 Mechanisms for anomalous transport in one-dimensional systems 30' ( Virtual )
        Speaker: Vir Bulchandani (UC Berkeley)
        Material: Slides Video
      • 17:00 Logarithmic anomalies of spin transport in non-integrable magnets 30' ( Virtual )
        Speaker: Jacopo De Nardis (Ghent University)
        Material: Slides Video
      • 17:30 Discussion rooms 1h30' ( Virtual )
        Discussion session I:  Enej Ilievski 
  • Wednesday, 10 June 2020
    • 15:00 - 19:00 Sessions are postponed to 16/06 in light of the Black Lives matter strike
  • Friday, 12 June 2020
    • 15:00 - 16:30 Session V: Diffusive corrections
      • 15:00 Diffusion from convection 30' ( Virtual )
        Speaker: Marko Medenjak (ENS Paris)
        Material: Slides Video
      • 15:30 Rule 54 reversible cellular automaton: an exactly solvable microscopic model of interacting dynamics 30' ( Virtual )
        Speaker: Katja Klobas (University of Ljubljana)
        Material: Slides Video
      • 16:00 Discussion rooms 30' ( Virtual )
        Discussion session I: Takato Yoshimura
        Discussion session II: Tomaz Prosen
    • 16:30 - 19:00 Session VI
      • 16:30 Universal aspects of low-temperature transport from generalized hydrodynamics 30' ( Virtual )
        Speaker: Lorenzo Piroli (Max Planck Institute Garching)
        Material: Slides Video
      • 17:00 Entanglement evolution and generalised hydrodynamics 30' ( Virtual )
        Speaker: Maurizio Fagotti (Université Paris-Saclay)
        Material: Slides Video
      • 17:30 Discussion rooms 1h30' ( Virtual )
        Discussion session I: Bruno Bertini
        Discussion session II: Vincenzo Alba
  • Tuesday, 16 June 2020
    • 15:00 - 17:00 Session III: Bose Gases
      • 15:00 Quantum Generalized Hydrodynamics 30' ( Virtual )
        Speaker: Paola Ruggiero (Université de Genève)
        Material: Slides Video
      • 15:30 Evolution of the rapidity distribution under atom losses in the one-dimensional Bose gas 30' ( Virtual )
        Speaker: Jerome Dubail (Université de Lorraine)
        Material: Slides Video
      • 16:00 Applications of GHD in cold gas experiments 30' ( Virtual )
        Speaker: Frederik Moller (Technische Universität Wien)
        Material: Slides Video
      • 16:30 Discussion rooms 30' ( Virtual )
        Discussion session I: Ben Doyon
        Discussion session II: Isabelle Bouchoule (TBC)
        Discussion session III: Igor Mazets, Chen Li
    • 17:00 - 19:00 Session IV: Beyond Integrability
      • 17:00 Hydrodynamics of inhomogeneous locally integrable models 30' ( Virtual )
        Speaker: Alvise Bastianello (University of Amsterdam)
        Material: Slides Video
      • 17:30 From generalized to conventional hydrodynamics 30' ( Virtual )
        Speaker: Sarang Gopalakrishnan (CUNY)
        Material: Slides Video
      • 18:00 Discussion rooms 1h0' ( Virtual )
        Discussion session I: Andrea De Luca (TBC)
        Discussion session II: Romain Vasseur