Coherence resonance in a washboard potential

被引：4
|
作者：
Casado, JM [1 ]
机构：
[1] Univ Sevilla, Area Fis Teor, E-41080 Seville, Spain
来源：
PHYSICS LETTERS A | 2001年 / 291卷 / 2-3期
关键词：
dynamical systems; noise; coherence resonance; phase drift;
D O I：
10.1016/S0375-9601(01)00727-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this Letter, the first two moments of the distribution of first passage times between two adjacent minima in a washboard potential are obtained numerically and the coherence of the noise-induced motion along the energy landscape is analyzed as a function of the noise intensity. It is shown that, although in this system the mobility does not present stochastic resonant behaviour, coherence can be enhanced by selecting a finite level of noise. The application of this model to describe random phase drifts in a neurobiological model is suggested. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码：82 / 86
页数：5
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