= Eigenstate thermalization hypothesis
{wiki=Eigenstate_thermalization_hypothesis}
The Eigenstate Thermalization Hypothesis (ETH) is a conjecture in quantum statistical mechanics that aims to explain how non-integrable quantum systems can exhibit thermal behavior even when they start from a highly non-equilibrium state. Specifically, it addresses how individual quantum states can display macroscopic thermodynamic properties akin to those observed in systems at thermal equilibrium.
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