Parallel-tempering cluster algorithm for computer simulations of critical phenomena

Details Parallel-tempering cluster algorithm for computer simulations of critical phenomena Parallel-tempering cluster algorithm for computer simulations of critical phenomena

2011-07-28

arxiv.org/abs/1107.5640v1

Physics

Condensed Matter

Statistical Mechanics

pages, 5 figures, and 2 tables

Scientific paper

In finite-size scaling analyses of Monte Carlo simulations of second-order phase transitions one often needs an extended temperature range around the critical point. By combining the parallel tempering algorithm with cluster updates and an adaptive routine to find the temperature window of interest, we introduce a flexible and powerful method for systematic investigations of critical phenomena. As a result, we gain one to two orders of magnitude in the performance for 2D and 3D Ising models in comparison with the recently proposed Wang-Landau recursion for cluster algorithms based on the multibondic algorithm, which is already a great improvement over the standard multicanonical variant.

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