Nonequilibrium phase transition in the kinetic Ising model: Dynamical symmetry breaking by randomly varying magnetic field

被引:38
作者
Acharyya, M [1 ]
机构
[1] Univ Cologne, Inst Theoret Phys, D-50923 Cologne, Germany
来源
PHYSICAL REVIEW E | 1998年 / 58卷 / 01期
关键词
D O I
10.1103/PhysRevE.58.174
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The nonequilibrium dynamic phase transition, In the two-dimensional kinetic Ising model in the presence of a randomly varying (in time but uniform in space) magnetic field, has been studied both by Monte Carlo simulation and by solving the mean-field dynamic equation of motion for the average magnetization. In both the cases, the time-averaged magnetization vanishes from a nonzero value depending upon the values of the width of randomly varying field and the temperature. The phase boundary lines are drawn in the plane formed by the width of the random field and the temperature.
引用
收藏
页码:174 / 178
页数:5
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