Study of a microcanonical algorithm on the $\pm J$ spin glass model in d=3

Details Study of a microcanonical algorithm on the $\pm J$ spin glass model in d=3 Study of a microcanonical algorithm on the $\pm J$ spin glass model in d=3

1998-12-23

arxiv.org/abs/cond-mat/9812378v2

Comp. Phys. Comm. (125) 1-3 (2000) 210-220

Physics

Condensed Matter

Disordered Systems and Neural Networks

Revised version. Latex 14 pages, 6 figures. To be published in Comput. Phys. Commun

Scientific paper

10.1016/S0010-4655(99)00490-7

We consider a microcanonical local algorithm to be applied on the $\pm J$ spin glass model. We have compared the results coming from a microcanonical Monte Carlo simulation with those from a canonical one: Thermalization times, spin glass susceptibilities and Binder parameters. For a fixed lattice size we found different results between the two thermodynamic ensembles, which tend to vanish at bigger volumes. Moreover, microcanonical thermalization times are longer than the canonical ones. Finally we have checked that one of the Guerra relations is satisfied with good precision for the two largest lattices.

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