University of Birmingham > Talks@bham > Theoretical Physics Seminars > Dynamics of thermalization in isolated quantum many-body systems: A simple solvable example

Dynamics of thermalization in isolated quantum many-body systems: A simple solvable example

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  • UserKatja Klobas, University of Notthingham
  • ClockThursday 18 May 2023, 13:15-14:30
  • HouseTheory Library.

If you have a question about this talk, please contact Dr Hannah Price.

When a generic isolated quantum many-body system is driven out of equilibrium, its local properties are eventually described by the thermal ensemble. This picture can be intuitively explained by saying that, in the thermodynamic limit, the system acts as a bath for its own local subsystems. Despite the great success of this paradigm, for interacting systems most of the evidence in support of it comes from numerical computations in relatively small systems, and there are very few exact results. The situation changed with the discovery of certain solvable classes of local quantum circuits, in which finite-time dynamics is accessible and the subsystem-thermalization picture can be verified. After introducing the general picture I will present an example of a simple interacting integrable circuit, for which the finite-time dynamics can be exactly described, and the model can be shown to exhibit generic thermalization properties.

This talk is part of the Theoretical Physics Seminars series.

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