| New Monte Carlo Simulations to a Generalized XY Model |
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| 引用本文： | 刘会平 孙运周 易林. New Monte Carlo Simulations to a Generalized XY Model[J]. 中国物理快报, 2006, 23(2): 316-319 |
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| 作者姓名： | 刘会平 孙运周 易林 |
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| 作者单位： | Department of Physics and State Key Laboratory of Laser Techi~ology, Huazhong U12iversity of Science and Technology, Wuhan 430074 |
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| 基金项目： | Supported by the Natural Science Foundation of Hubei Province under Grant No 2003ABA004. We are indebted to Professor Wang Jian-Sheng at Department of Computational Science, National University of Singapore, for stimulating discussions. |
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| 摘 要： | A new combination Monte Carlo （MC） technique of the classical Metropolis algorithm and the Swendsen Wang cluster algorithm is proposed. Upon application of the MC technique, the thermodynamic properties of a generalized two-dimensional XY model with chiral Dzyaloshinski-Moriya （DM） interactions are simulated for various DM interactions. The specific heat, order parameter and the integrated correlation time are simulated, We find that there exists a high-temperature Kosterlitz-Thouless-type phase transition related to strong DM spin ehiralities. As the DM strength increases the critical temperature of the Kosterlitz-Thouless phase transition increases, It is shown that the combination algorithm is faster than the Metropolis algorithms.
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| 关 键 词： | 蒙特卡罗模拟 算法理论 联合算法 临界温度 二维XY模型 固体物理学 |
| 收稿时间： | 2005-08-31 |
| 修稿时间： | 2005-08-31 |
New Monte Carlo Simulations to a Generalized XY Model |
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| LIU Hui-Ping, SUN Yun-Zhou, YI Lin. New Monte Carlo Simulations to a Generalized XY Model[J]. Chinese Physics Letters, 2006, 23(2): 316-319 |
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| Authors: | LIU Hui-Ping SUN Yun-Zhou YI Lin |
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