On the Use of Optimized Monte Carlo Methods for Studying Spin Glasses

Details On the Use of Optimized Monte Carlo Methods for Studying Spin Glasses On the Use of Optimized Monte Carlo Methods for Studying Spin Glasses

2000-11-02

arxiv.org/abs/cond-mat/0011039v1

J. Phys. A 34 (2001) 383

Physics

Condensed Matter

Statistical Mechanics

6 pages, 5 eps figures included

Scientific paper

10.1088/0305-4470/34/3/305

We start from recently published numerical data by Hatano and Gubernatis cond-mat/0008115 to discuss properties of convergence to equilibrium of optimized Monte Carlo methods (bivariate multi canonical and parallel tempering). We show that these data are not thermalized, and they lead to an erroneous physical picture. We shed some light on why the bivariate multi canonical Monte Carlo method can fail.

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