| XY模型中涡旋数密度的Monte Carlo模拟 |
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| 引用本文： | 钦小平,阮世平.XY模型中涡旋数密度的Monte Carlo模拟[J].浙江科技学院学报,2012(4):283-286. |
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| 作者姓名： | 钦小平 阮世平 |
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| 作者单位： | 浙江科技学院理学院 |
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| 摘 要： | 应用蒙特卡罗方法,系统地研究了铁磁XY模型中涡旋数密度随时间的弛豫过程,仔细分析了序参数和涡旋数密度的临界标度行为。自由涡旋数密度存在幂次律行为,但需要引入修正。测量得到静态临界指数η,与理论得到的结果相符合。
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| 关 键 词： | XY模型 数值模拟 蒙特卡罗方法 |
Monte Carlo simulation of vortex density in XY model |
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| QIN Xiao-ping,RUAN Shi-ping.Monte Carlo simulation of vortex density in XY model[J].Journal of Zhejiang University of Science and Technology,2012(4):283-286. |
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| Authors: | QIN Xiao-ping RUAN Shi-ping |
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| Institution: | (School of Sciences,Zhejiang University of Science and Technology,Hangzhou 310023,China) |
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| Abstract: | With Monte Carlo methods,the dynamic relaxation of vortex density in ferromagnetic XY model is systematically studied.The dynamic scaling behavior of the order parameter and vortex density is carefully analyzed.A power-law behavior of free vortex density is detected but with certain corrections to scaling.The static critical exponent η is obtained,which is in agreement with that from theoretical calculation. |
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| Keywords: | XY model numerical simulation Monte Carlo method |
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