非对称势作用下负载驱动的惯性布朗马达的易化运动
Facilitated movement of inertial Brownian motors driven by a load under an asymmetric potential
摘要：
根据最近的工作[L。马丘拉湾Kostur，P. Talkner，J. Luczka，and P. Hanggi，Phys. Rev. Lett. 98，040601（2007）]，我们将惯性布朗马达的研究扩展到非对称势的情况。研究发现，在非对称势的存在下，会出现一些输运现象。在定制的参数范围内，存在两个最佳载荷值，在这两个最佳载荷值处，平均速度取其最大值，这意味着在这两个参数范围内，载荷可以促进输运。此外，当负载增加时，可以观察到多次电流反转的现象。
英文摘要：
Based on recent work [L. Machura, M. Kostur, P. Talkner, J. Luczka, and P. Hanggi, Phys. Rev. Lett. 98, 040601 (2007)], we extend the study of inertial Brownian motors to the case of an asymmetric potential. It is found that some transport phenomena appear in the presence of an asymmetric potential. Within tailored parameter regimes, there exists two optimal values of the load at which the mean velocity takes its maximum, which means that a load can facilitate the transport in the two parameter regimes. In addition, the phenomenon of multiple current reversals can be observed when the load is increased.
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