Current reversals in a rocking ratchet: Dynamical versus symmetry-breaking mechanisms

被引：43

作者：

Cubero, D. ^{[1
]}

Lebedev, V. ^{[2
]}

Renzoni, F. ^{[2
]}

机构：

[1] Univ Seville, Dept Fis Aplicada 1, EUP, Seville 41011, Spain

[2] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

PHYSICAL REVIEW E | 2010年 / 82卷 / 04期

关键词：

BROWNIAN MOTORS; CHAOTIC TRANSPORT; DRIVEN;

D O I：

10.1103/PhysRevE.82.041116

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：

Directed transport in ratchets is determined by symmetry breaking in a system out of equilibrium. A hallmark of rocking ratchets is current reversals: an increase in the rocking force changes the direction of the current. In this work for a biharmonically driven spatially symmetric rocking ratchet we show that a class of current reversal is precisely determined by symmetry breaking, thus creating a link between dynamical and symmetry-breaking mechanisms.

引用

页数：4

共 23 条

[1]

AJDARI A, 1994, J PHYS I, V4, P1551, DOI 10.1051/jp1:1994206

[2]

AJDARI A, 1992, CR ACAD SCI II, V315, P1635

[3] PERIODICALLY ROCKED THERMAL RATCHETS [J].