Entanglement dynamics of a hard-core quantum gas during a Joule expansion

Autor:	Sascha Wald, Filiberto Ares Asensio, Stefano Scopa
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Statistics and Probability Quantum Physics Statistical Mechanics (cond-mat.stat-mech) Modeling and Simulation FOS: Physical sciences General Physics and Astronomy Statistical and Nonlinear Physics Quantum Physics (quant-ph) Mathematical Physics Condensed Matter - Statistical Mechanics
Popis:	We study the entanglement dynamics of a one-dimensional hard-core quantum gas initially confined in a box of size $L$ with saturated density $\rho=1$. The gas is suddenly released into a region of size $2L$ by moving one of the box edges. We show that the analytic prediction for the entanglement entropy obtained from quantum fluctuating hydrodynamics holds quantitatively true even after several reflections of the gas against the box edges. We further investigate the long time limit $t/L\gg 1$ where a Floquet picture of the non-equilibrium dynamics emerges and hydrodynamics eventually breaks down. Comment: 25 pages, 15 figures; v2: minor changes
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59ad45f591c44afff4df073b73b8644b http://arxiv.org/abs/2204.01664 Zobrazit plný text záznamu