Scroll breakup in a three-dimensional excitable medium

被引：24
|
作者：
Panfilov, AV
Hogeweg, P
机构：
[1] Department of Theoretical Biology, University of Utrecht, Utrecht, 3584 CH
来源：
PHYSICAL REVIEW E | 1996年 / 53卷 / 02期
关键词：
D O I：
10.1103/PhysRevE.53.1740
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：
We show that a scroll wave in a homogeneous three-dimensional (3D) excitable medium can spontaneously break up into an irregular spatial pattern. This occurs in a FitzHugh-Nagumo model with modified dynamics of the slow variable (shortened relative refractory period of the excitable medium). The mechanism of the scroll breakup in 3D is similar to the mechanism of the spiral breakup in 2D and is associated with the instability of wave propagation under high frequency forcing.
引用
收藏
页码：1740 / 1743
页数：4
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