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Rectified Brownian Transport Driven by a Spatio-Temporal Colored Noise
並列摘要
We study the directed transport of Brownian particles in a periodic potential in the presence of a spatio-temporal colored noise and an unbiased external force. Based on the Fokker- Planck method, we obtain the analytical expression of the current for the Brownian particles. We find that the spatio-temporal colored noise plays a significant role in the directed transport of Brownian particles, and it can remarkably change the current. There exists an optimal value of the spatio correlation length at which the current takes its maximal value.
並列關鍵字
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