ANALYTICAL DESCRIPTION OF A STATE DOMINATED BY SPIRAL DEFECTS IN 2-DIMENSIONAL EXTENDED SYSTEMS

被引：22

作者：

RICA, S ^{[1
]}

TIRAPEGUI, E ^{[1
]}

机构：

[1] UNIV NICE,PHYS THEOR LAB,F-06034 NICE,FRANCE

来源：

PHYSICA D | 1991年 / 48卷 / 2-3期

关键词：

D O I：

10.1016/0167-2789(91)90095-Q

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

We study the state of a diluted gas of spiral defects observed in a recent simulation of a two-dimensional extended system governed by the Ginzburg-Landau equation with complex coefficients. We show that this state, which is responsible for the disorganization of the system, can be described by an approximate solution in which the new variables are the positions of the spirals and a new global phase. The dynamics of these new variables and the conditions for the existence of the state are determined.

引用

页码：396 / 424

页数：29

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