Effects of correlation time between noises on the noise enhanced stability phenomenon in an asymmetric bistable system
Chun Li1,Zheng-Lin Jia2,Dong-Cheng Mei1,2,3,*()
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
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 TL and from the right metastable state TRare 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.
. [J]. Frontiers of Physics, 2015, 10(1): 100501.
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. Front. Phys. , 2015, 10(1): 100501.
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