Effect of Asymmetry in a Bistable System Subject to
Multiplicative Colored Noise |
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| Authors: | ZHOU Yu-Rong GUO Feng PANG Xiao-Feng |
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| Institution: | 1. School of Life Science and Technology, University of
Electronic Science and Technology of China, Chengdu 610054, China
;2. School of Information and Electric Engineering, Panzhihua
University, Panzhihua 617000, China
;3. School of Automation Engineering, University of Electronic
Science and Technology of China, Chengdu 610054, China |
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| Abstract: | By the method of the stochastic energetics, we investigate the stochastic resonance (SR) phenomenon of an overdamped Brown particle in an asymmetric bistable potential, driven by external periodical signal and multiplicative noise. The expressions have been obtained for the
quasi-steady-state probability distribution function. It is found that the input energy (IE) pumped into the system by the external driving shows an
SR-like behavior as a function of the noise strength, whereas the IE turns
to be a monotonic function of the correlation time of the noise. The effect of potential asymmetry is also studied on SR and IE. |
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| Keywords: | asymmetric bistable system stochastic resonance stochastic energetics |
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