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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Competition and cooperation between thermal noise and external driving force
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Competition and cooperation between thermal noise and external driving force

机译:热噪声与外部驱动力之间的竞争与合作

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摘要

We consider the transport of an overdamped Brownian particle moving in a rocked flashing ratchet-like potential. Together with a zero-mean driving force and a thermal white noise, the direction and behavior of the movement of the particle can be controlled. The expression of current is obtained by means of the perturbation approximation for fast flashing cases. Both the average velocity and position of the particle are simulated by use of the Langevin approach. The current reversal and the stepping motion of the particle are obtained and shown. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 15]
机译:我们考虑了一个过阻尼的布朗粒子的传输,该粒子以晃动的棘轮状电位运动。加上零均值驱动力和热白噪声,可以控制粒子运动的方向和行为。对于快闪情况,通过扰动近似获得电流的表达式。粒子的平均速度和位置都使用Langevin方法进行了模拟。获得并显示了粒子的电流反向和步进运动。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:15]

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