Eigenstate thermalization hypothesis through the lens of autocorrelation functions

@article{Schnle2021EigenstateTH,
  title={Eigenstate thermalization hypothesis through the lens of autocorrelation functions},
  author={Christoph Sch{\"o}nle and David Jansen and Fabian Heidrich-Meisner and Lev Vidmar},
  journal={Physical Review B},
  year={2021}
}
Matrix elements of observables in eigenstates of generic Hamiltonians are described by the Srednicki ansatz within the eigenstate thermalization hypothesis (ETH). We study a quantum chaotic spin-fermion model in a one-dimensional lattice, which consists of a spin-1/2 XX chain coupled to a single itinerant fermion. In our study, we focus on translationally invariant observables including the charge and energy current, thereby also connecting the ETH with transport properties. We ask to which… Expand
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