Directed transport in periodically rocked random sawtooth potentials

被引：9

作者：

Denisov, S. I. ^{[1
,2
]}

Lyutyy, T. V. ^{[2
]}

Denisova, E. S. ^{[2
]}

Haenggi, P. ^{[3
,4
,5
]}

Kantz, H. ^{[1
]}

机构：

[1] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

[2] Sumy State Univ, UA-40007 Sumy, Ukraine

[3] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

[4] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[5] Natl Univ Singapore, Ctr Computat Sci & Engn, Singapore 117542, Singapore

来源：

PHYSICAL REVIEW E | 2009年 / 79卷 / 05期

关键词：

random processes; transport processes; CHAOTIC TRANSPORT; BROWNIAN MOTORS; RATCHETS; DRIVEN;

D O I：

10.1103/PhysRevE.79.051102

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We study directed transport of overdamped particles in a periodically rocked random sawtooth potential. Two transport regimes can be identified which are characterized by a nonzero value of the average velocity of particles and a zero value, respectively. The properties of directed transport in these regimes are investigated both analytically and numerically in terms of a random sawtooth potential and a periodically varying driving force. Precise conditions for the occurrence of transition between these two transport regimes are derived and analyzed in detail.

引用

页数：7

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