Symmetry breaking of fluctuation dynamics by noise color

被引：16

作者：

Arrayás, M ^{[1
]}

Dykman, MI

Mannella, R

McClintock, PVE

Stein, ND

机构：

[1] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[3] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy

[4] INFM, UdR Pisa, I-56100 Pisa, Italy

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.84.5470

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Activated escape is investigated for systems that are driven by noise whose power spectrum peaks at a finite frequency. Analytic theory and analog and digital experiments show that the system dynamics during escape exhibit a symmetry-breaking transition as the width of the fluctuational spectral peak is varied. For double-well potentials, even a small asymmetry may result in a parametrically large difference of the activation energies for escape from different wells.

引用

页码：5470 / 5473

页数：4

共 21 条

[1] INSTANTON CALCULATION OF THE ESCAPE RATE FOR ACTIVATION OVER A POTENTIAL BARRIER DRIVEN BY COLORED NOISE [J].