BOUNDARY-INDUCED DRIFT OF SPIRALS IN EXCITABLE MEDIA

被引：20

作者：

ARANSON, I ^{[1
]}

KESSLER, D ^{[1
]}

MITKOV, I ^{[1
]}

机构：

[1] HEBREW UNIV JERUSALEM, RACAH INST PHYS, IL-91904 JERUSALEM, ISRAEL

来源：

PHYSICAL REVIEW E | 1994年 / 50卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.50.R2395

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 motion of a spiral wave in an excitable medium due to interaction with a boundary is considered. The drift of the core and the frequency shift, evaluated analytically as a response to a small perturbation of the boundary, are found to be superexponentially weak. It is shown that for some range of parameters the spiral is unstable to small displacements away from the center of a circular domain.

引用

页码：R2395 / R2398

页数：4

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