Thermalization and Canonical Typicality in Translation-Invariant Quantum Lattice Systems

  title={Thermalization and Canonical Typicality in Translation-Invariant Quantum Lattice Systems},
  author={Markus P. M{\"u}ller and Emily Adlam and Lluis Masanes and Nathan Wiebe},
  journal={Communications in Mathematical Physics},
It has previously been suggested that small subsystems of closed quantum systems thermalize under some assumptions; however, this has been rigorously shown so far only for systems with very weak interaction between subsystems. In this work, we give rigorous analytic results on thermalization for translation-invariant quantum lattice systems with finite-range interaction of arbitrary strength, in all cases where there is a unique equilibrium state at the corresponding temperature. We clarify the… 
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