Eigenstate Thermalisation on Average

• URL: http://arxiv.org/abs/2104.14940v2
• Date: Thu, 3 Jun 2021 13:23:37 GMT
• Title: Eigenstate Thermalisation on Average
• Authors: Joe Dunlop, Oliver Cohen, Anthony J. Short
• Abstract summary: 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.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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