Stochastic Ising model with flipping sets of spins and fast decreasing temperature

Roy Cerqueti

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper deals with the stochastic Ising model with a temperature shrinking to zero as time goes to infinity. A generalization of the Glauber dynamics is considered, on the basis of the existence of simultaneous flips of some spins. Such dynamics act on a wide class of graphs which are periodic and embedded in Rd. The interactions between couples of spins are assumed to be quenched i.i.d. random variables following a Bernoulli distribution with support {−1, +1}. The specific problem here analyzed concerns the assessment of how often (finitely or infinitely many times, almost surely) a given spin flips. Adopting the classification proposed in [14], we present conditions in order to have models of type F (any spin flips finitely many times), I (any spin flips infinitely many times) and M (a mixed case). Several examples are provided in all dimensions and for different cases of graphs. The most part of the obtained results holds true for the case of zero-temperature and some of them for the cubic lattice Ld = (Z d, Ed) as well
Original languageEnglish
Pages (from-to)757-789
JournalAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques
DOIs
Publication statusPublished - May 2018
Externally publishedYes

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