Effect of non-Gaussian noise on negative mobliity

被引：2
|
作者：
Yang Bo [1 ]
Mei Dong-Cheng [1 ]
机构：
[1] Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China
来源：
ACTA PHYSICA SINICA | 2013年 / 62卷 / 11期
基金：
中国国家自然科学基金;
关键词：
negative mobility; non-Gaussian noise; anomalous transport; BROWNIAN MOTORS DRIVEN; RUNGE-KUTTA ALGORITHMS; STOCHASTIC RESONANCE; ENHANCEMENT; SYSTEM; MOTION;
D O I：
10.7498/aps.62.110502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Effects of non-Gaussian noise on negative mobility in an inertial ratchet were investigated by means of stochastic simulation method. The absolute negative mobility (ANM), negative nonlinear mobility (NDM), and negative differential mobility (NNM) were simulated, separately. Results indicate that: (i) non-Gaussian noise can either enhance or diminish the phenomena of ANM, and non-Gaussian noise also can induce NDM and NNM in regions of parameter space. (ii) The average velocity-correlation time characteristics shift towards small value of correlation time. (iii) The absolute value of negative-valued minima decreases as the non-Gaussian noise parameter q increases.
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页数：6
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