A Local Phase Control of Spiral and Spatiotemporal Chaos

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2006, Vol. 23 ›› Issue (2): 243-248.

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A Local Phase Control of Spiral and Spatiotemporal Chaos

MA Jun^1,2, WU Ning-jie², YING He-ping², PU Zhong-sheng¹

1. Department of Physics, School of Science, Lanzhou University of Technology, Lanzhou 730050, China;
2. Zhejiang Institute of Modern Physics and Physics Department, Zhejiang University, Hangzhou 310027, China

Received:2005-02-06 Revised:2005-04-21 Online:2006-03-25 Published:2006-03-25

Abstract

Abstract: A local phase compress scheme is applied to suppress spiral and spatiotemporal chaos in the Fitzhugh-Nagumo and Panfilov systems. In the numerical investigation, the compress signal is limited to a small area in order to control the global spiral and spatiotcmporal chaos with or without noise. The simulation shows that the system becomes homogeneous stable within a few of 50 time units. A practical control of defibrillation and pattern formation is discussed.

Key words: spiral, defibrillation, phase compress, spatiotemporal chaos

CLC Number:

O322

MA Jun, WU Ning-jie, YING He-ping, PU Zhong-sheng. A Local Phase Control of Spiral and Spatiotemporal Chaos[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2006, 23(2): 243-248.

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A Local Phase Control of Spiral and Spatiotemporal Chaos

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