Transport of overdamped Brownian particles in a two-dimensional tube: Nonadiabatic regime

被引：41

作者：

Ai, Bao-quan ^{[1
,2
]}

机构：

[1] S China Normal Univ, ICMP, Lab Quantum Informat Technol, Guangzhou 510631, Guangdong, Peoples R China

[2] S China Normal Univ, SPTE, Guangzhou 510631, Guangdong, Peoples R China

来源：

PHYSICAL REVIEW E | 2009年 / 80卷 / 01期

基金：

中国国家自然科学基金;

关键词：

QUARTZ-CRYSTAL MICROBALANCE; THERMAL RATCHETS; FLASHING RATCHET; MOLECULAR MOTORS; SLIDING FRICTION; DRIVEN; MACROMOLECULES; SEPARATION; MODELS; SIEVE;

D O I：

10.1103/PhysRevE.80.011113

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：

Transport of overdamped Brownian particles in a two-dimensional asymmetric tube is investigated in the presence of nonadiabatic periodic driving forces. By using Brownian dynamics simulations we can find that the phenomena in nonadiabatic regime differ from that in adiabatic case. The direction of the current can be reversed by tuning the driving frequency. Remarkably, the current as a function of the driving amplitude exhibits several local maxima at finite driving frequency.

引用

页数：4

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