Critical behavior of nonequilibrium phase transitions to magnetically ordered states -: art. no. 046110

被引：0

作者：

Birner, T ^{[1
]}

Lippert, K ^{[1
]}

Müller, R ^{[1
]}

Kühnel, A ^{[1
]}

Behn, U ^{[1
]}

机构：

[1] Univ Leipzig, Inst Theoret Phys, D-04109 Leipzig, Germany

来源：

PHYSICAL REVIEW E | 2002年 / 65卷 / 04期

关键词：

D O I：

暂无

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：

We describe nonequilibrium phase transitions in arrays of dynamical systems with cubic nonlinearity driven by multiplicative Gaussian white noise. Depending on the sign of the spatial coupling we observe transitions to ferromagnetic or antiferromagnetic ordered states. We discuss the phase diagram, the order of the transitions, and the critical behavior. For global coupling we show analytically that the critical exponent of the magnetization exhibits a transition from the value 1/2 to a nonuniversal behavior depending on the ratio of noise strength to the magnitude of the spatial coupling.

引用

页数：5

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