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

• Published in: Chinese physics B Vol. 21; no. 8; pp. 71 - 77
• Main Author: 郭锋 程晓锋 李少甫 曹文 黎恒
• Format: Journal Article
• Language: English
• Published: 01.08.2012
• Subjects: Approximation; Constants; Correlation; Mathematical analysis; Noise; Signal to noise ratio; SNR; Stochastic resonance; Strength; White noise; 二分法; 噪声驱动; 密闭结构; 时间变化; 结构熵; 随机共振; 非单调函数
• ISSN: 1674-1056; 2058-3834; 1741-4199
• DOI: 10.1088/1674-1056/21/8/080502

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.