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Prog. Theor. Phys. Supplement No.157 (2005) pp. 349-352

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Cluster Monte Carlo Algorithms for Diluted Spin Glasses

Thomas Jörg

Dipartimento di Fisica, INFM and SMC, Università di Roma “La Sapienza", P. A. Moro 2, 00185 Roma, Italy

Abstract:

Recently a cluster Monte Carlo algorithm has been used very successfully in the two-dimensional Edwards-Anderson (EA) model. We show that this algorithm and a variant thereof can also be used successfully in models with a non-zero spin glass transition temperature. The application of such algorithms to the site-diluted EA model in three dimensions is discussed and the efficiency of the two algorithms is compared among each other and to parallel tempering. Finally, we give evidence for a spin glass transition in the three-dimensional site-diluted EA model with Gaussian couplings at a site occupation of p = 62.5%.


URL : http://ptp.ipap.jp/link?PTPS/157/349/
DOI : 10.1143/PTPS.157.349

[ Full Text PDF : FREE ACCESS (108K) ] Citation:

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