A comparison of the performance of Wang-Landau-Transition-Matrix algorithm with Wang-Landau algorithm for the determination of the joint density of states for continuous spin models
作者： Shyamal Bhar , Soumen Kumar Roy
DOI: 10.1016/J.CPC.2013.01.004
关键词: Mathematics 、 Spin-½ 、 Monte Carlo method 、 Space (mathematics) 、 Algorithm 、 Stochastic matrix 、 Density of states 、 Function (mathematics) 、 Random walk 、 Correlation function
摘要: Abstract Monte Carlo simulation has been performed in a one-dimensional Lebwohl–Lasher model and two-dimensional X Y -model using the Wang–Landau (WL) Wang–Landau-Transition-Matrix (WLTM) methods. Random walk space comprising of energy-order parameter energy-correlation function joint density states (JDOS) were obtained. From JDOS order parameter, susceptibility correlation are calculated. Agreement between results obtained from two algorithms is very good. The work shows that for purpose determination JDOS, WLTM method good alternative to WL algorithm.
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