Stochastic Resonance in a Bacterium Growth System Subjected to Colored Noises

被引：1

作者：

ZENG ChunHua ZHOU XiaoFeng and TAO ShuFen Faculty of Science Kunming University of Science and Technology Kunming China Department of Physics Qujing Normal University Qujing China ^{[1
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机构：

来源：

Communications in Theoretical Physics | 2009年 / 52卷 / 10期

关键词：

stochastic resonance; bacterium growth system; colored noises;

D O I：

暂无

中图分类号：

O324 [随机振动];

学科分类号：

080101 ;

摘要：

<正> We present the logistic growth model to study the stochastic resonance（SR）in a bacterium growth systemunder the simultaneous action of two external multiplicative cross-correlation noises and periodic external forcing.Theexpression of the signal-to-noise ratio（SNR）for a bacterium growth system is derived by using the theory of SNR inthe adiabatic limit.Based on SNR,we discuss the effects of self-correlation time τ1 and τ2,cross-correlation time τ3and cross-correlation strength λ on the SNR.It is found that the self-correlation time τ1 and τ2,and cross-correlationstrength λ enhance the SR of the bacterium growth system,while cross-correlation time τ3 weakens the SR of thebacterium growth system.

引用

页码：615 / 618

页数：4