Giant acceleration of free diffusion by use of tilted periodic potentials -: art. no. 010602

被引：414

作者：

Reimann, P

Van den Broeck, C

Linke, H

Hänggi, P

Rubi, JM

Pérez-Madrid, A

机构：

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

[2] Limburgs Univ Ctr, B-3590 Diepenbeek, Belgium

[3] Univ New S Wales, Sch Phys, Sydney, NSW 2051, Australia

[4] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

[5] Univ Barcelona, Fac Fis, Dept Fis Fonamental, E-08028 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.87.010602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effective diffusion coefficient for the overdamped Brownian motion in a tilted periodic potential is calculated in closed analytical form. Universality classes and scaling properties for weak thermal noise are identified near the threshold tilt where deterministic running solutions set in. In this regime the diffusion may be greatly enhanced, as compared to free thermal diffusion with, for a realistic experimental setup, an enhancement of up to 14 orders of magnitude.

引用

页码：1 / 010602

页数：4

共 22 条

[1]

AJDARI A, 1992, P NATL ACAD SCI USA, V88, P4468

[2]

[Anonymous], 1982, PHYSICS APPL JOSEPHS

[3] Brownian surfers [J].