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Resonant-Like Activation in a Bistable System with Noise and Time Delay |
| NIE Lin-Ru1, GONG Ai-Ling1, MEI Dong-Cheng2 |
| 1Faculty of Science, Kunming University of Science and Technology, Kunming 6500932Department of Physics, Yunnan University, Kunming 650091 |
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| Cite this article: |
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NIE Lin-Ru, GONG Ai-Ling, MEI Dong-Cheng 2009 Chin. Phys. Lett. 26 060504 |
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Abstract A bistable system with noise and time delay is investigated. Theoretical analysis and stochastic simulation show that: (i) In the case of a system driven only by multiplicative Gaussian white noise, the mean first-passage time for a particle to reach the other stable state from one stable state exhibits a minimum with respect to delay time, i.e., a resonant-like activation (RA) phenomenon. (ii) In the action of additive and multiplicative noise, as the additive noise intensity increases, no matter whether a correlation between the two types of noise exists or not, the RA gradually disappears. (iii) The correlation strength between the two types of noise does not influence the existence of the RA.
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05.40.Ca
02.50.-r
02.60.Cb
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Received: 30 September 2008
Published: 01 June 2009
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| PACS: |
05.40.Ca
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(Noise)
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02.50.-r
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(Probability theory, stochastic processes, and statistics)
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02.60.Cb
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(Numerical simulation; solution of equations)
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