On the probabilistic formulation of the replica approach to spin glasses

Details On the probabilistic formulation of the replica approach to spin glasses On the probabilistic formulation of the replica approach to spin glasses

1998-01-09

arxiv.org/abs/cond-mat/9801081v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

15 pages, no figures

Scientific paper

In this paper we review the predictions of the replica approach on the probability distribution of the overlaps among replicas and on the sample to sample fluctuations of this probability. We stress the role of replica equivalence in obtaining relations which do not depend on the form of replica symmetry breaking. A comparison is done with the results obtained with a different rigorous approach. The role of the ultrametricity and of other algebraic properties in discussed. It is shown that the ultrametric solution can be obtained from a variational principle.

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