Controlling spiral waves in confined geometries by global feedback

被引：93

作者：

Zykov, VS ^{[1
]}

Mikhailov, AS ^{[1
]}

Muller, SC ^{[1
]}

机构：

[1] MAX PLANCK GESELL,FRITZ HABER INST,D-14195 BERLIN,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.78.3398

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The evolution of spiral waves on a circular domain and on a spherical surface is studied by numerical integration of a reaction-diffusion system with a global feedback. It is shown that depending on intensity, sign, and/or time delay in the feedback loop a global coupling can be effectively used either to stabilize the rigid rotation of a spiral wave or to completely destroy spiral waves and to suppress self-sustained activity in a confined domain or an excitable medium. An explanation of the numerically observed effects is produced by a kinematical model of spiral wave propagation.

引用

页码：3398 / 3401

页数：4

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