External fluctuations in front propagation

被引：53

作者：

Armero, J

Sancho, JM

Casademunt, J

Lacasta, AM

RamirezPiscina, L

Sagues, F

机构：

[1] UNIV POLITECN CATALUNYA,DEPT FIS APLICADA,E-08028 BARCELONA,SPAIN

[2] UNIV BARCELONA,DEPT QUIM FIS,E-08028 BARCELONA,SPAIN

[3] UNIV CALIF SAN DIEGO,DEPT 0407,INST NONLINEAR SCI,LA JOLLA,CA 92093

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.76.3045

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the effects of external noise in a one-dimensional model of front propagation. Noise is introduced through the fluctuations of a control parameter leading to a. multiplicative stochastic partial differential equation. Analytical and numerical results for the front shape and velocity are presented. The linear-marginal-stability theory is found to increase its range of validity in the presence of external noise. As a consequence noise can stabilize fronts not allowed by the deterministic equation.

引用

页码：3045 / 3048

页数：4

共 22 条

[1]

ARMERY J, IN PRESS

[2] PATTERN PROPAGATION IN NONLINEAR DISSIPATIVE SYSTEMS [J].