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Suppression of spirals and turbulence in inhomogeneous excitable media.

作者信息

Chen Jiang-Xing, Mao Jun-Wen, Hu Bambi, Xu Jiang-Rong, He Ya-Feng, Li Yuan, Yuan Xiao-Ping

机构信息

Department of Physics, HangZhou Dianzi University, Hangzhou 310018, China.

出版信息

Phys Rev E Stat Nonlin Soft Matter Phys. 2009 Jun;79(6 Pt 2):066209. doi: 10.1103/PhysRevE.79.066209. Epub 2009 Jun 22.

DOI:10.1103/PhysRevE.79.066209
PMID:19658585
Abstract

Suppression of spiral and turbulence in inhomogeneous media due to local heterogeneity with higher excitability is investigated numerically. When the inhomogeneity is small, control tactics by boundary periodic forcing (BPF) is effective against the existing spiral and turbulence. When the inhomogeneity of excitability is large, a rotating electric field (REF) is utilized to "smooth" regional heterogeneity based on driven synchronization. Consequently, a control approach combining BPF with REF is proposed to suppress the spiral and turbulence. The underlying mechanism of successful suppression is discussed in terms of dispersion relation.

摘要

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