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

被引：0
|
作者：
J. Xiao
G. Hu
H. Liu
Y. Zhang
机构：
[1] Department of Basic Science,
[2] Beijing University of Posts and Telecommunications,undefined
[3] Beijing 100876,undefined
[4] P.R. China,undefined
[5] Physics Department,undefined
[6] Beijing Normal University,undefined
[7] Beijing 100875,undefined
[8] P.R. China,undefined
[9] Center of Theoretical Physics,undefined
[10] Chinese Center of Advanced Science Technology (World Laboratory),undefined
[11] Beijing 8730,undefined
[12] P.R. China,undefined
来源：
The European Physical Journal B - Condensed Matter and Complex Systems | 1998年 / 5卷
关键词：
PACS. 05.45.+j Fluctuation phenomena, random processes, and Brownian motion;
D O I：
暂无
中图分类号：
学科分类号：
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
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页码：133 / 138
页数：5
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