External fluctuations in a pattern-forming instability

被引：17

作者：

GarciaOjalvo, J ^{[1
]}

Sancho, JM ^{[1
]}

机构：

[1] UNIV BARCELONA,FAC FIS,DEPT ESTRUCTURA & CONSTITUENTS MAT,E-08028 BARCELONA,SPAIN

来源：

PHYSICAL REVIEW E | 1996年 / 53卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.53.5680

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：

The effect of external fluctuations on the formation of spatial patterns is analyzed by means of a stochastic Swift-Hohenberg model with multiplicative space-correlated noise. Numerical simulations in two dimensions show a shift of the bifurcation point controlled by the intensity of the multiplicative noise. This shift takes place in the ordering direction (i.e., produces patterns), but its magnitude decreases with that of the noise correlation length. Analytical arguments are presented to explain these facts.

引用

页码：5680 / 5689

页数：10

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