arXiv:1506.07265 [quant-ph]AbstractReferencesReviewsResources
The Necessity of Eigenstate Thermalization
Giacomo De Palma, Alessio Serafini, Vittorio Giovannetti, Marcus Cramer
Published 2015-06-24Version 1
Under the eigenstate thermalization hypothesis (ETH), quantum-quenched systems equilibrate towards canonical, thermal ensembles. While at first glance the ETH might seem a very strong hypothesis, we show that it is indeed not only sufficient but also necessary for thermalization. More specifically, we consider systems coupled to baths with well-defined macroscopic temperature and show that whenever all product states thermalize then the ETH must hold.
Comments: 7 pages
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