Volume 35, Number 4, August I 1996
|Page(s)||313 - 314|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Comment on “White-noise–induced transport in periodic structures” by J. Łuczka et al.
Yukawa Institute for Theoretical Physics, Kyoto University - Kyoto,
2 Research Institute of Electrical Communication, Tohoku University, Sendai, 980-77, Japan
Accepted: 13 June 1996
In the paper by J. Łuczka et al. (Europhys. Lett., 31 (1995) 431), the authors reported by rigorous calculation that an additive Poissonian white shot noise can induce a macroscopic current of a dissipative particle in a periodic potential —even in the absence of spatial asymmetry of the potential. We argue that their central result can easily be attributed to the spatially broken symmetry of a probability distribution of the additive noise, unlike the similar result caused by chaotic noise which has a symmetric probability distribution (J. Phys. Soc. Jpn., 63 (1994) 2014).
PACS: 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion / 82.20.Mj – Nonequilibrium kinetics
© EDP Sciences, 1996
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