Effects of correlation time between noises on the noise enhanced stability phenomenon in an asymmetric bistable system

doi:10.1007/s11467-014-0438-9

Front. Phys.

2015, Vol. 10

Issue (1) : 100501 https://doi.org/10.1007/s11467-014-0438-9

Condensed Matter, Materials Physics, and Statistical Physics

Effects of correlation time between noises on the noise enhanced stability phenomenon in an asymmetric bistable system

Chun Li¹,Zheng-Lin Jia²,Dong-Cheng Mei^1,^2,^3,^*(

)

1. Department of Computer Science, Puer College, Puer 665000, China
2. Department of Physics, Yuxi Normal University, Yuxi 653100, China
3. Department of Physics, Yunnan University, Kunming 650091, China

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Abstract

The effects of the correlation time τ between noises on the noise-enhanced stability (NES) phenomenon in an asymmetric bistable system driven by cross-correlated noise are investigated. The expressions for the average escape time from the left metastable state T_L and from the right metastable state T_Rare derived. The results indicate that: i) The NES effect is suppressed as the correlation time τ increases for two metastable states; ii) The increase in τ speeds up the escape process from the right state for positively correlated noise, whereas its role is reverses for negatively correlated; iii) In the escape process from the left state, the role of τ is opposite to that in escape from the right state.

Keywords asymmetric bistable system noise correlation time noise enhanced stability

Corresponding Author(s): Dong-Cheng Mei

Issue Date: 10 February 2015

Cite this article:

Chun Li,Zheng-Lin Jia,Dong-Cheng Mei. Effects of correlation time between noises on the noise enhanced stability phenomenon in an asymmetric bistable system[J]. Front. Phys. , 2015, 10(1): 100501.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-014-0438-9
https://academic.hep.com.cn/fop/EN/Y2015/V10/I1/100501

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