Minimal fokker-planck theory for the thermalization of mesoscopic subsystems

Igor Tikhonenkov, Amichay Vardi, James R. Anglin, Doron Cohen

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


We explore a minimal paradigm for thermalization, consisting of two weakly coupled, low dimensional, nonintegrable subsystems. As demonstrated for Bose-Hubbard trimers, chaotic ergodicity results in a diffusive response of each subsystem, insensitive to the details of the drive exerted on it by the other. This supports the hypothesis that thermalization can be described by a Fokker-Planck equation. We also observe, however, that Levy-flight type anomalies may arise in mesoscopic systems, due to the wide range of time scales that characterize 'sticky' dynamics.

Original languageEnglish
Article number050401
JournalPhysical Review Letters
Issue number5
StatePublished - 30 Jan 2013

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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