Electric-field-sustained spiral waves in subexcitable media

被引：27
|
作者：
Cai, Mei-chun
Pan, Jun-ting
Zhang, Hong [1 ]
机构：
[1] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China
来源：
PHYSICAL REVIEW E | 2012年 / 86卷 / 01期
关键词：
EXCITABLE MEDIA; PATTERNS; MODEL; PROPAGATION; DRIFT; DYNAMICS;
D O I：
10.1103/PhysRevE.86.016208
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 present numerical evidence that, in the presence of a suitable electric field, an isolated broken plane wave retracting originally in subexcitable media can propagate continuously and eventually evolve into a rotating spiral. Simulations for the FitzHugh-Nagumo, the Barkley, and the Oregonator models are carried out and the same electric-field-sustained spiral phenomena are observed. Semianalytical results in the framework of a kinematic theory are quantitatively consistent with the numerical results.
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页数：5
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