多自旋相互作用Ising模型相变类型的Monte Carlo研究  

MONTE CARLO STUDY OF THE ORDER OF PHASE TRANSITION OF A MULTISPIN INTERACTIONS ISING MODEL

作　　者：张国民[1] 杨传章[1] 

机构地区：[1]苏州大学物理系,苏州215006

出　　处：《物理学报》1993年第10期1680-1683,共4页Acta Physica Sinica

摘　　要：利用Monte Carlo方法,我们发现在水平方向上具有m自旋相互作用而在竖直方向具有n自旋相互作用的二维Ising模型。当m=n=3时,其相变是一级相变,而当m=3,n=2时,其相变却是二级相变。The order of phase transition of a two-dimensional Ising model with m-body interactions in the horizontal direction and n-body interactions in the vertical direction in the m = 3, n = 3 case is of the first-order which is determined by our Monte Carlo algorithm, while in the m= 3,n=2 case the transition is of the second order.

关 键 词：自旋 伊辛模型 相变 蒙特卡罗法 

分 类 号：O414.2[理学—理论物理]