Transport coherence in coupled Brownian ratchet

被引：26

作者：

Wang, Hai-Yan ^{[1
]}

Bao, Jing-Dong ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2007年 / 374卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ratchet; transport coherence; coupled Brownian motors;

D O I：

10.1016/j.physa.2006.07.005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

With this work, we investigate an often neglected aspect of coupled Brownian motors transport, namely, transport coherence. To discuss the transport coherence of coupled Brownian motors, velocity, diffusion coefficient and their ratio (Pe number) are calculated via solving Langevin equation in fluctuating potential ratchet. The results demonstrate that the collective effect of coupled Brownian ratchets can generate high transport coherence. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：33 / 40

页数：8

共 26 条

[1]

Alberts B., 2002, Molecular Biology of The Cell, V4th

[2] Thermodynamics and kinetics of a Brownian motor [J].

Astumian, RD .

SCIENCE, 1997, 276 (5314) :917-922

[3] Langevin simulation approach to a two-dimensional coupled flashing ratchet [J].

Bao, JD ;

Zhuo, YZ .

PHYSICS LETTERS A, 1998, 239 (4-5) :228-232

[4] Transport of elastically coupled particles in an asymmetric periodic potential [J].

Csahok, Z ;

Family, F ;

Vicsek, T .

PHYSICAL REVIEW E, 1997, 55 (05) :5179-5183

[5] Generalized efficiency and its application to microscopic engines [J].

Derényi, I ;

Bier, M ;

Astumian, RD .

PHYSICAL REVIEW LETTERS, 1999, 83 (05) :903-906

[6] COOPERATIVE TRANSPORT OF BROWNIAN PARTICLES [J].

DERENYI, I ;

VICSEK, T .

PHYSICAL REVIEW LETTERS, 1995, 75 (03) :374-377

[7] Collective transport of particles in a ''flashing'' periodic potential [J].

Derenyi, I ;

Ajdari, A .

PHYSICAL REVIEW E, 1996, 54 (01) :R5-R8

[8]

FEYNMAN RP, 1966, FEYNMAN LECT PHYS, V1, pCH46

[9] AMPLIFICATION OF INTRINSIC FLUCTUATIONS BY CHAOTIC DYNAMICS IN PHYSICAL SYSTEMS [J].

FOX, RF ;

KEIZER, J .

PHYSICAL REVIEW A, 1991, 43 (04) :1709-1720

[10] Diffusion in discrete ratchets [J].

Freund, JA ;

Schimansky-Geier, L .

PHYSICAL REVIEW E, 1999, 60 (02) :1304-1309

← 1 2 3 →