物理
布朗运动
热涨落
常量(计算机编程)
热的
热平衡
惯性参考系
约瑟夫森效应
统计物理学
经典力学
凝聚态物理
量子力学
超导电性
热力学
计算机科学
程序设计语言
作者
Łukasz Machura,Marcin Kostur,Peter Talkner,J. Łuczka,Peter Hänggi
标识
DOI:10.1103/physrevlett.98.040601
摘要
A novel transport phenomenon is identified that is induced by inertial Brownian particles which move in simple one-dimensional, symmetric periodic potentials under the influence of both a time periodic and a constant, biasing driving force. Within tailored parameter regimes, thermal equilibrium fluctuations induce the phenomenon of absolute negative mobility (ANM), which means that the particle noisily moves backwards against a small constant bias. When no thermal fluctuations act, the transport vanishes identically in these tailored regimes. ANM can also occur in the absence of fluctuations on grounds which are rooted solely in the complex, inertial deterministic dynamics. The experimental verification of this new transport scheme is elucidated for the archetype symmetric physical system: a convenient setup consisting of a resistively and capacitively shunted Josephson junction device.
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