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arXiv · 1906.01654

Generalized hydrodynamics with space-time inhomogeneous interactions

Alvise Bastianello·Vincenzo Alba·Jean Sébastien Caux
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Abstract

We provide a new hydrodynamic framework to describe out-of-equilibrium integrable systems with space-time inhomogeneous interactions. Our result builds up on the recently-introduced Generalized Hydrodynamics (GHD). The method allows to analytically describe the dynamics during generic space-time-dependent smooth modulations of the interactions. As a proof of concept, we study experimentally-motivated interaction quenches in the trapped interacting Bose gas, which cannot be treated with current analytical or numerical methods. We also benchmark our results in the XXZ spin chain and in the classical Sinh-Gordon model.

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Alvise Bastianello, Vincenzo Alba, Jean Sébastien Caux. 2019-09-27. Generalized hydrodynamics with space-time inhomogeneous interactions. https://doi.org/10.1103/physrevlett.123.130602

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