Low-Resistant Band-Passing Noise and Its Dynamical Effects

BAI Zhan-Wu

Communications in Theoretical Physics ›› 2007, Vol. 48 ›› Issue (01) : 112-116.

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Communications in Theoretical Physics ›› 2007, Vol. 48 ›› Issue (01) : 112-116.

Low-Resistant Band-Passing Noise and Its Dynamical Effects

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Abstract

We propose an n-order noise, which is realized by driving an n-order linear differential equation with a Gaussian white noise. The time-derivative noise is a low-resistant band-passing noise. If the derivative noise is regarded as a thermal one, the system has a vanishing effective friction and it should induce ballistic diffusion of a free particle at long times. The simulation method for the generalized Langevin equation driven by the n-order noise is discussed systematically. The features of three-order derivative noises are presented when they are applied to a ratchet system.

Key words

n-order noise / ballistic diffusion / Langevin simulation / ratchet system

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BAI Zhan-Wu. Low-Resistant Band-Passing Noise and Its Dynamical Effects[J]. Communications in Theoretical Physics, 2007, 48(01): 112-116
PDF(227 KB)

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