Non-equilibrium correlations in the infinite-range Ising spin glass

R. N. Bhatt, A. P. Young

Research output: Contribution to journalLetterpeer-review

7 Scopus citations


The authors use Monte Carlo simulations to investigate the possibility of obtaining equilibrium values of quantities which relax slowly to equilibrium by studying the evolution of their non-equilibrium behaviour. As an example they study the order parameter distribution P(q) for the infinite-range Ising spin glass during the approach to equilibrium. This is evaluated both by computing the overlap between two initially uncorrelated copies of the system and from the correlation between the same set of spins at two different times. They find that the value of the most slowly relaxing part of the distribution, P(q=0), decreases monotonically with time from the first method, while a monotonically increasing result is obtained from the second technique. Consequently they expect that one could obtain the equilibrium value of P(q=0) for larger sizes by extrapolation of non-equilibrium data.

Original languageEnglish (US)
Pages (from-to)L57-L64
JournalJournal of physics C: Solid State Physics
Issue number3
StatePublished - Jan 30 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • General Engineering
  • General Physics and Astronomy


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