Collective transport of particles in a ''flashing'' periodic potential

被引：57

作者：

Derenyi, I ^{[1
]}

Ajdari, A ^{[1
]}

机构：

[1] ECOLE SUPER PHYS & CHIM IND VILLE PARIS, PHYS THEOR LAB, F-75231 PARIS 05, FRANCE

来源：

PHYSICAL REVIEW E | 1996年 / 54卷 / 01期

关键词：

THERMAL RATCHETS; DRIVEN RATCHETS; MOTION;

D O I：

10.1103/PhysRevE.54.R5

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 consider the collective motion of finite size Brownian particles induced by a one-dimensional, spatially asymmetric, periodic potential which is turned ''on'' and ''off'' dichotomously. The particles interact through simple hard-core repulsion. We show analytically that this simple system exhibits an interesting collective behavior: (i) the direction of motion can change many times as the density of particles is increased; (ii) close to the maximal density, the average velocity depends on the size of the particles in a very complex way, both in sign and magnitude.

引用

页码：R5 / R8

页数：4

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