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Brownian ratchets driven by flashing noise strength |
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| Institution: | ZHAO Tongjun, ZHAN Yong, ZHUO Yizhong and WU Xizhen Department of Applied Mathematics and Physics , Hebei University of Technology , Tianjin 300130, China ; China Institute of Atomic Energy, Beijing 102413, China; Institute of Theoretical Physics, Chinese Academy of Sciences , Beijing 100080, China ; Corresponding author |
| 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 T is obtained . At a fixed flip rate and strength of the colored noises, the novel phenomenon of the current reversal occurs as T reaches a certain value. More than one reversal point exists when a flashing colored noise source and a flashing white noise source are simultaneously taken into account. |
| Keywords: | flashing force ratchet current reversal Langevian equation |
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