Entropic stochastic resonance in a confined structure driven by dichotomous noise and white noises

• 来源期刊: 中国物理B（英文版）
• 关键词: entropic stochastic resonance dichotomous noise correlated noise square-wave signal signal-to-noise ratio
• 年，卷（期）: 2012,（8）
• 页码范围: 71-77
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/21/8/080502

摘要

The entropic stochastic resonance (ESR) in a confined system subjected to dichotomous noise and white noise and driven by a periodic sinusoidal force along the x axis of the structure and a time-dependent force in the declining direction,is investigated.Under the adiabatic approximation condition and based on the two-state theory,the expression of the output signal-to-noise ratio (SNR) is obtained.The results show that the SNR is a non-monotonic function of the strengths of dichotomous noise,white noise,and correlated strength of correlated noise.In addition,the SNR varies non-monotonically with the increase of the shape parameters of the confined structure,and also with the increase of the constant force along the y axis of the structure.The influence of the correlation rate of the dichotomous noise,and that of the frequency of the periodic force on the SNR are discussed.