Relaxation to equilibrium of the expectation values in macroscopic quantum systems

Takaaki Monnai

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    A quantum mechanical explanation of the relaxation to equilibrium is shown for macroscopic systems for nonintegrable cases and numerically verified. The macroscopic system is initially in an equilibrium state, subsequently externally perturbed during a finite time, and then isolated for a sufficiently long time. We show a quantitative explanation that the initial microcanonical state typically reaches a state whose expectation values are well approximated by the average over another microcanonical ensemble.

    Original languageEnglish
    Article number011126
    JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
    Volume84
    Issue number1
    DOIs
    Publication statusPublished - 2011 Jul 18

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    Quantum Systems
    Microcanonical Ensemble
    Equilibrium State

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Statistical and Nonlinear Physics
    • Statistics and Probability

    Cite this

    Relaxation to equilibrium of the expectation values in macroscopic quantum systems. / Monnai, Takaaki.

    In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 84, No. 1, 011126, 18.07.2011.

    Research output: Contribution to journalArticle

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