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arXiv · 1504.07709

The connection between statics and dynamics of spin glasses

Matthew Wittmann·A. P. Young
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Abstract

We present results of numerical simulations on a one-dimensional Ising spin glass with long-range interactions. Parameters of the model are chosen such that it is a proxy for a short-range spin glass above the upper critical dimension (i.e. in the mean-field regime). The system is quenched to a temperature well below the transition temperature $T_c$ and the growth of correlations is observed. The spatial decay of the correlations at distances less than the dynamic correlation length $\xi(t)$ agrees quantitatively with the predictions of a static theory, the "metastate", evaluated according to the replica symmetry breaking (RSB) theory. We also compute the dynamic exponent $z(T)$ defined by $\xi(t) \propto t^{1/z(T)}$ and find that it is compatible with the mean-field value of the critical dynamical exponent for short range spin glasses.

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Matthew Wittmann, A. P. Young. 2015-04-29. The connection between statics and dynamics of spin glasses. https://doi.org/10.1088/1742-5468/2016/01/013301

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