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摘要翻译：
本文给出了在无外倾力的情况下，在时间无关的棘轮势中由对称Levy噪声驱动的有向输运的数值证据。结果是基于周期势中分数阶Fokker-Planck方程的数值解和相应的Langevin方程的Levy噪声的数值解。Levy噪声驱动系统脱离热力学平衡，产生上山净电流。对于较小的噪声强度值，有一个Levy噪声指数的最佳值产生最大电流。通过改变Levy噪声不对称性和电位不对称性，可以控制电流的方向和大小。
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英文标题：
《Fluctuation-driven directed transport in the presence of Levy flights》
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作者：
D. del-Castillo-Negrete, V. Yu. Gonchar, A. V. Chechkin
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
Numerical evidence of directed transport driven by symmetric Levy noise in time-independent ratchet potentials in the absence of an external tilting force is presented. The results are based on the numerical solution of the fractional Fokker-Planck equation in a periodic potential and the corresponding Langevin equation with Levy noise. The Levy noise drives the system out of thermodynamic equilibrium and an up-hill net current is generated. For small values of the noise intensity there is an optimal value of the Levy noise index yielding the maximum current. The direction and magnitude of the current can be manipulated by changing the Levy noise asymmetry and the potential asymmetry.
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PDF链接：
https://arxiv.org/pdf/710.0883
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