Frequency-sensitive stochastic resonance in periodically forced and globally coupled systems

被引：14

作者：

Xiao, J ^{[1
]}

Hu, G

Liu, H

Zhang, Y

机构：

[1] Beijing Univ Posts & Telecommun, Dept Basic Sci, Beijing 100876, Peoples R China

[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

[3] Chinese Ctr Adv Sci & Technol, Ctr Theoret Phys, World Lab, Beijing 8730, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL B | 1998年 / 5卷 / 01期

关键词：

D O I：

10.1007/s100510050425

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A model of globally coupled bistable systems consisting of two kinds of sites, subject to periodic driving and spatially uncorrelated stochastic force, is investigated. The extended system models the competing process of activators and suppressers. Analytical computations for linear response of the system to the external periodic forcing is carried out. Noise-induced Hopf bifurcation is revealed, and stochastic resonance, sensitively depending on the frequency of the external forcing, is predicted under the Hopf bifurcation condition. Numerical simulations agree with the analytical predictions satisfactorily.

引用

页码：133 / 138

页数：6

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