Eigenstate Thermalisation on Average
Quantum Physics
2021-09-01 v2 Statistical Mechanics
Abstract
We consider conditions under which an isolated quantum system approaches a microcanonical equilibrium state. A key component is the eigenstate thermalisation hypothesis, which proposes that all energy eigenstates appear thermal. We introduce a weaker version of this requirement, applying only to the average distinguishability of eigenstates from the thermal state, and investigate its necessity and sufficiency for thermalisation.
Cite
@article{arxiv.2104.14940,
title = {Eigenstate Thermalisation on Average},
author = {Joe Dunlop and Oliver Cohen and Anthony J. Short},
journal= {arXiv preprint arXiv:2104.14940},
year = {2021}
}
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9 pages