Transition-Matrix Monte Carlo Method for Quantum Systems(General)
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概要
- 論文の詳細を見る
We propose an efficient method for Monte Carlo simulation of quantum lattice models by generalizing the method [Phys. Rev. E 66 (2002) 036704] proposed for classical models by the present authors. In particular, we derive an exact relation between the density of states and the microcanonical averages of some macroscopic quantities. The simulation method consists of the graph construction by the loop/cluster algorithm and the estimation of the density of states by the relation. While there may be a few variants for the graph construction, we consider the one proposed by Troyer et al. [Phys. Rev. Lett. 90 (2003) 120201]. The performance of the method is examined for S = 1/2 antiferromagnetic Heisenberg chain, and compared with other algorithms.
- 社団法人日本物理学会の論文
- 2004-07-15
著者
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Okabe Yutaka
Department Of Applied Chemistry Science And Engineering Waseda University
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Kawashima Naoki
Department Of Physics Toho University
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YAMAGUCHI Chiaki
Department of Computer and Mathematical Sciences, Graduate School of Information Sciences, Tohoku Un
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Yamaguchi Chiaki
Department Of Computer And Mathematical Sciences Graduate School Of Information Sciences Tohoku Univ
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Kawashima Naoki
Department Of Physics Faculty Of Science University Of Tokyo
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