Stochastic resonance in extended bistable systems: The role of potential symmetry

被引：93
作者：
Bouzat, S [1 ]
Wio, HS
机构：
[1] Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
[2] Inst Balseiro UNC, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina
来源：
PHYSICAL REVIEW E | 1999年 / 59卷 / 05期
关键词：
D O I：
10.1103/PhysRevE.59.5142
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 study the role of potential symmetry in a three-field reaction-diffusion system presenting bistability by means of a two-state theory for stochastic resonance in general asymmetric systems. By analyzing the influence of different parameters in the optimization of the signal-to-noise ratio, we observe that this magnitude always increases with the symmetry of the system's potential, indicating that it is this feature which governs the optimization of the system's response to periodic signals. [S1063-651X(99)12505-4].
引用
收藏
页码：5142 / 5149
页数：8
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