Phase diffusion in localized spatiotemporal amplitude chaos

被引：16

作者：

Granzow, GD

Riecke, H

机构：

[1] Department of Engineering Sciences and Applied Mathematics, Northwestern University, Evanston, IL

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.77.2451

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present numerical simulations of coupled Ginzburg-Landau equations describing parametrically excited waves which reveal persistent dynamics due to the occurrence of phase slips in sequential pairs, with the second phase slip quickly following and negating the first. Of particular interest are solutions where these double phase slips occur irregularly in space and time within a spatially localized region. An effective phase diffusion equation utilizing the long-term phase conservation of the solution explains the localization of this new form of amplitude chaos.

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页码：2451 / 2454

页数：4

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