Breaking Of Ergodicity In A Canonical Spin System

POSTER

Abstract

Breaking of ergodicity occurs when the phase space of an anisotropic spin system is disconnected. The related 11phase'' separation produces a power-law divergence of the recurrence time within one disconnected portion (demagnetization time) at some critical energy. Such average time can be also evaluated for a system in contact with a thermal bath and found to diverge at low temperature even for few particle systems.

Authors

  • Bruno Goncalves

    • Physics Department, Emory University
    • Emory University

  • Fausto Borgonovi

    • Universita' Cattolica

  • G. Luca Celardo

    • Universidad Autonoma de Puebla