Eigenstate thermalization on average.
basic_science · Level V
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- Record sourced from PubMed, PMID 34525520.
- Also identified by DOI 10.1103/PhysRevE.104.024135.
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Abstract
We consider conditions under which an isolated quantum system approaches a microcanonical equilibrium state. A key component is the eigenstate thermalization 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 thermalization.