摘要
The transient properties of a bistable system driven by cross-correlated noises are investigated,the correlation times of the correlations between the noises are nonzero.The explicit expression of the mean,first-passage time(MFPT)is obtained.From numerical computations we find the following.(1)The MFPT of the system is affected by the correlation time T and the correlation strength λ,T and λ play opposing roles in the MFPT.(2)For the case of perfectly correlated noises(λ=1),the MFPT corresponding to α>D and α<D(α and D are the additive noise and multiplicative noise intensities,respectively)exhibit the same behaviors and the MFPT for α=D is continuous,which is very different from the case of τ=0[Phys.Rev.E 53(1996)5764].
作者
MEI Dong-cheng
XIE Guang-zhong
CAO Li
WU Da-jin
梅冬成;谢光中;曹力;吴大进(Yunnan Astrophysics Center,Yunnan University,Kunming 650091;Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011;Department of Physics,Huazhong University of Science and Technology,Wuhan 430074)
基金
Supported by the National Natural Science Foundation of China under Grant No.19863001
the Applied Basic Research Foundations of Yunnan Province and Yunnan Education Committee.
