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Quantum Simulation

Typicality of nonequilibrium (quasi-)steady currents

arXiv
Authors: Xiansong Xu, Chu Guo, Dario Poletti

Year

2021

Paper ID

41292

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

The understanding of the emergence of equilibrium statistical mechanics has progressed significantly thanks to developments from typicality, canonical and dynamical, and from the eigenstate thermalization hypothesis. Here we focus on a nonequilibrium scenario in which two nonintegrable systems prepared in different states are locally and non-extensively coupled to each other. Using both perturbative analysis and numerical exact simulations of up to 28 spin systems, we demonstrate the typical emergence of nonequilibrium (quasi-)steady current for weak coupling between the subsystems. We also identify that these currents originate from a prethermalization mechanism, which is the weak and local breaking of the conservation of the energy for each subsystem.

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  • The understanding of the emergence of equilibrium statistical mechanics has progressed significantly thanks to developments from typicality, canonical and dynamical, and from...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2111.13019 [2] arXiv https://arxiv.org/abs/2111.13019 [3] Publisher https://arxiv.org/abs/2111.13019

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