期刊
PHYSICAL REVIEW LETTERS
卷 86, 期 22, 页码 4992-4995出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.86.4992
关键词
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The overdamped Brownian motion in a periodic potential under far from equilibrium conditions is considered. A large class of systems with an intrinsic asymmetry, called supersymmetric ratchets, is identified for which the occurrence of directed transport can he ruled out without any fine-tuning of parameters.
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