Simulated Tempering: A New Monte Carlo Scheme
- 15 July 1992
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 19 (6) , 451-458
- https://doi.org/10.1209/0295-5075/19/6/002
Abstract
We propose a new global optimization method (Simulated Tempering) for simulating effectively a system with a rough free-energy landscape (i.e., many coexisting states) at finite nonzero temperature. This method is related to simulated annealing, but here the temperature becomes a dynamic variable, and the system is always kept at equilibrium. We analyse the method on the Random Field Ising Model, and we find a dramatic improvement over conventional Metropolis and cluster methods. We analyse and discuss the conditions under which the method has optimal performances.Keywords
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