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二层Ising模型的短时临界动力学性质
引用本文:吴木营,叶爱军,李志兵.二层Ising模型的短时临界动力学性质[J].物理学报,2000,49(6):1168-1170.
作者姓名:吴木营  叶爱军  李志兵
作者单位:(1)东莞理工学院电子系,东莞 511700; (2)中山大学物理系,广州 510275
基金项目:国家自然科学基金(批准号:19772074)资助的课题.
摘    要:采用动力学Monte Carlo 方法研究了二层Ising模型的临界性质及早期动力学标度行为.结果表明层间耦合不为零时也存在临界点;计算了早期动力学临界指数θ;估计了传统的临界指数1/νz.其结果支持临界线存在的猜想,并表明此模型很可能是一种弱普适模型. 关键词

关 键 词:蒙特卡罗法  二层Ising模型  短时临界动力学性质
收稿时间:1999-11-15

SHORT-TIME CRITICAL DYNAMIC PROCESS OF TWO-LAYER ISING MODEL
WU MU-YING,YE AI-JUN,LI ZI-BING and ZENG WEN-GUANG.SHORT-TIME CRITICAL DYNAMIC PROCESS OF TWO-LAYER ISING MODEL[J].Acta Physica Sinica,2000,49(6):1168-1170.
Authors:WU MU-YING  YE AI-JUN  LI ZI-BING and ZENG WEN-GUANG
Abstract:Monte Carlo simulations of critical dynamics has been used to study the short-time process and scaling behavior of two-layer Ising model. The result shows that there are critical points even when the coupling between the two layers is not equal to zero; the short-time dynamic critical exponent θ was determined; the traditional critical exponent 1/νz was estimated also.Our result encouraged the supposition of the existence of the critical line and evidenced that this model was likely a weak universal model.
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