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Does the Eigenstate Thermalization Hypothesis Imply Thermalization?
Published 5 Feb 2020 in cond-mat.stat-mech, hep-th, and quant-ph | (2002.01857v1)
Abstract: Eigenstate thermalization hypothesis (ETH) is discussed. We show that one common formulation of ETH does not necessarily imply thermalization of an observable of isolated many body quantum system. To get thermalization one has to postulate the canonical or microcanonical distribution in the ETH-ansatz. More generally, any other average can be postulated in the generalized ETH-ansatz which leads to a corresponding equilibration condition.
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