非高斯噪声对惯性棘轮中粒子负迁移率的影响

杨波; 梅冬成

doi:10.7498/aps.62.110502

摘要

利用随机模拟方法研究了惯性棘轮中非高斯噪声对负迁移率的影响. 分别模拟了绝对负迁移率(ANM), 非线性迁移率(NNM) 和负微分迁移率(NDM) 等三种反常输运现象. 计算结果表明: 1) 在不同的参数空间里, 非高斯噪声参数q 能够增强或者削弱ANM, 诱导NNM 和NDM; 2) 当q 较大时, 反常输运现象转化为正常输运; 3) 随着q 逐渐增大, 平均速度- 关联时间特性曲线朝着关联时间较小的方向移动并且其峰值逐渐减小.

关键词:

Abstract

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.

Keywords:

作者及机构信息

杨波,
梅冬成

1.
云南大学物理系, 昆明650091

基金项目: 国家自然科学基金(批准号: 11165016)资助的课题.

Authors and contacts

1.
Department of Physics, Yunnan University, Kunming 650091, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11165016).

参考文献

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[27]	Reguera D, Luquel A, Burada P S, Schmid G, Rubi J M, Hanggi P 2012 Phys. Rev. Lett. 108 020604
[28]	Kenfack A, Sweetnam S M, Pattanayak A K 2007 Phys. Rev. E 75 056215
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施引文献

[1]	Kostur M, Luczka J, Hanggi P 2009 Phys. Rev. E 80 051121
[2]	Machura L, Kostur M, Talkner P, Luczka J, Hanggi P 2007 Phys. Rev. Lett. 98 040601
[3]	Speer D, Eichhorn R, Reimann P 2007 Euro Phys. Lett. 79 10005
[4]	Speer D, Eichhorn R, Reimann P 2007 Phys. Rev. E 76 051110
[5]	Ai B Q, Liu L G 2007 Phys. Rev. E 76 042103
[6]	Du L C, Mei D C 2011 J. Stat. Mech. 2011 P11016
[7]	Du L C, Mei D C 2012 Phys. Rev. E 85 011148
[8]	Machura L, Luczka J 2010 Phys. Rev. E 82 031133
[9]	Li J H, Luczka J 2010 Phys. Rev. E 82 041104
[10]	Cubero D, Lebedev V, Renzoni F 2009 Phys. Rev. E 82 041116
[11]	Mato G 1999 Phys. Rev. E 59 3339
[12]	d' Onofrio A 2010 Phys. Rev. E 81 021923
[13]	Wiesenfeld K, Pierson D, Pantazelou E, Dames C, Moss F 1994 Phys. Rev. Lett. 72 2125
[14]	Nozaki D, Mar D J, Grigg P, Collins J J 1999 Phys. Rev. Lett. 82 2402
[15]	Fuentes M A, Toral R, Wio H S 2001 Physica A 295 114
[16]	Fuentes M A, Wio H S, Toral R 2002 Physica A 303 91
[17]	Bouzat S, Wio H S 2004 Eur. Phys. J. B 41 97
[18]	Bouzat S, Wio H S 2005 Physica A 351 69
[19]	Wu D, Zhu S Q 2007 Phys. Lett. A 363 202
[20]	Wu D, Luo X Q, Zhu S Q 2007 Physica A 373 203
[21]	Wio H S, Toral R 2004 Physica D 193 161
[22]	Kostur M, Machura L, Talkner P, Hanggi P, Luczka J 2008 Phys. Rev. B 77 104509
[23]	Ros A, Eichhorn R, Regtmeier J, Duong T T, Reimann P, Anselmetti D 2005 Nature (London) 436 928
[24]	Nagel J, Speer D, Gaber T, Sterck A, Eichhorn R, Reimann P, Ilin K, Siegel M, Koelle D, Kleiner R 2008 Phys. Rev. Lett. 100 217001
[25]	Arzola A, Volke-Sepulveda K, Mateos J 2011 Phys. Rev. Lett. 106 168104
[26]	Masoller C 2002 Phys. Rev. Lett. 88 034102
[27]	Reguera D, Luquel A, Burada P S, Schmid G, Rubi J M, Hanggi P 2012 Phys. Rev. Lett. 108 020604
[28]	Kenfack A, Sweetnam S M, Pattanayak A K 2007 Phys. Rev. E 75 056215
[29]	Honeycutt R L 1992 Phys. Rev. A 45 600
[30]	Honeycutt R L 1992 Phys. Rev. A 45 604

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