Parisi's mean-field solution for spin glasses as an analytic continuation in the replica number

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Parisi's replica symmetry breaking solution for spin glasses is extended to finite replica number n. The free energy Fp(n) obtained this way, as well as its first two derivatives with respect to n, are shown to join the corresponding values in the Sherrington-Kirkpatrick (SK) solution at a characteristic value ns(T), where stability breaks down in the latter. The continuation composed of the SK branch FSK(n) for n>or=ns(T) and the Parisi branch FP(n) for 0<or=n<or=nS(T) fulfils the requirements of convexity, monotonicity and stability for all n.

Original languageEnglish
Article number006
Pages (from-to)L127-L131
JournalJournal of Physics A: General Physics
Issue number4
Publication statusPublished - Dec 1 1983


ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Physics and Astronomy(all)
  • Mathematical Physics

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