Abstract
Institut fur Theoretische Physik, Universitat Leipzig,Postfach 100920, D-04009 Leipzig, GermanyE-mail:wolfhard.janke@itp.uni-leipzig.deIn finite-size scaling analyses of Monte Carlo simulations of second-order phase transitions oneoften needs an extended temperature/energy range around the critical point. By combining thereplica-exchange algorithm with cluster updates and an adaptive routine to find the range of in-terest, we introduce a new flexible and powerful method for sy stematic investigations of criticalphenomena. As a result, we gain two further orders of magnitude in the performance for 2D and3D Ising models in comparison with the recently proposed Wang-Landau recursion for clusteralgorithms based on the multibondic algorithm, which is already a great improvement over thestandard multicanonical variant.The XXVII International Symposium on Lattice Field Theory -LAT2009July 26-31 2009Peking University, Beijing, China
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