Ergodic properties of microcanonical observables

C. Giardinà, R. Livi

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    28 Citations (Scopus)
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    Abstract

    The problem of the existence of a strong stochasticity threshold in the FPU-ß model is reconsidered, using suitable microcanonical observables of thermodynamic nature, like the temperature and the specific heat. Explicit expressions for these observables are obtained by exploiting rigorous methods of differential geometry. Measurements of the corresponding temporal autocorrelation functions locate the threshold at a finite value of the energy density, which is independent of the number of degrees of freedom.
    Original languageEnglish
    Pages (from-to)1027-1045
    Number of pages19
    JournalJournal of Statistical Physics
    Volume91
    Issue number5-6
    DOIs
    Publication statusPublished - 1998

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