Effects of cross-correlated noises on the relaxation time of the bistable system |
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Authors: | Xie Chong-Wei and Mei Dong-Cheng |
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Institution: | Department of Physics, Yunnan University, Kunming 650091, China |
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Abstract: | The stationary correlation function and the associated relaxation time for a general system driven by cross-correlated white noises are derived, by virtue of a Stratonovich-like ansatz. The effects of correlated noises on the relaxation time of a bistable kinetic model coupled to an additive and a multiplicative white noises are studied. It is proved that for small fluctuations the relaxation time T_c as a function of λ (the correlated intensity between noises) exhibits very different behaviours for αD (α and D, respectively, stand for the ntensities of additive and multiplicative noises). When α>D, T_c increases with increasing λ. But when α
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Keywords: | correlated noise relaxation time bistable system |
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