Stabilization of spiral wave and turbulence in the excitable media using parameter perturbation scheme
Ma Jun(马军)a)c)†, Wang Chun-Ni(王春妮)a), Jin Wu-Yin(靳伍银)b), Li Yan-Long(李延龙)a), and Pu Zhong-Sheng(蒲忠胜)a)
aDepartment of Physics, Lanzhou university of Technology, Lanzhou 730050, China; bColleges of Mechano-Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050, China; c Department of Physics, Central China Normal University, Wuhan 430079, China
Abstract This paper proposes a scheme of parameter perturbation to suppress the stable rotating spiral wave, meandering spiral wave and turbulence in the excitable media, which is described by the modified Fitzhugh--Nagumo (MFHN) model. The controllable parameter in the MFHN model is perturbed with a weak pulse and the pulse period is decided by the rotating period of the spiral wave approximatively. It is confirmed that the spiral wave and spiral turbulence can be suppressed greatly. Drift and instability of spiral wave can be observed in the numerical simulation tests before the whole media become homogeneous finally.
Received: 01 August 2007
Revised: 27 November 2007
Accepted manuscript online:
Fund: Project Partially
supported by the National Natural Science Foundation of China (Grant
Nos 10572056, 10747005 and 30670529).
Cite this article:
Ma Jun(马军), Wang Chun-Ni(王春妮), Jin Wu-Yin(靳伍银), Li Yan-Long(李延龙), and Pu Zhong-Sheng(蒲忠胜) Stabilization of spiral wave and turbulence in the excitable media using parameter perturbation scheme 2008 Chin. Phys. B 17 2844
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