Quantum thermalization: Anomalous slow relaxation due to percolation-like dynamics

Christine Khripkov, Amichay Vardi, Doron Cohen

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We highlight a dynamical anomaly in which the rate of relaxation towards thermal equilibrium in a bi-partite quantum system violates the standard linear-response (Kubo) formulation, even when the underlying dynamics is highly chaotic. This anomaly originates from an -dependent sparsity of the underlying quantum network of transitions. Using a minimal bi-partite Bose-Hubbard model as an example, we find that the relaxation rate acquires an anomalous dependence that reflects percolation-like dynamics in energy space.

Original languageEnglish
Article number023071
JournalNew Journal of Physics
Volume17
DOIs
StatePublished - 24 Feb 2015

Keywords

  • BoseHubbard
  • ergodicity
  • thermalization

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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