Brownian ratchets driven by flashing noise strengt |
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| Authors: | Tongjun Zhao Yong Zhan Yizhong Zhuo Xizhen Wu |
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| Affiliation: | (1) Department of Applied Mathematics and Physics, Hebei University of Technology, 300130 Tianjin, China;(2) China Institute of Atomic Energy, 102413 Beijing, China;(3) Institute of Theoretical Physics, Chinese Academy of Sciences, 100080 Beijing, China |
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| Abstract: | The stochastic transport driven by flashing multi-noise sources in a ratchet is studied. The stationary current versus the noise strength and the colored noise correlated time r is obtained. At a fixed flip rate and strength of the colored noises, the novel phenomenon of the current reversal occurs as τ reaches a certain value. More than one reversal point exists when a flashing colored noise source and a flashing bdIite noise source are simultaneously taken into account. |
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| Keywords: | flashing force ratchet current reversal Langevian equation |
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