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Self-sustained target waves in excitable media with only a long-range link

In this paper we investigate spatiotemporal pattern formation in excitable media with only a long-range link. Besides the trivial solutions of spiral patterns, we find the asymptotic self-sustained target waves in the autonomous tissues. The wave source supporting this kind of new pattern is the osc...

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Bibliographic Details
Published in:Chinese physics B 2011-10, Vol.20 (10), p.457-462
Main Authors: Qian, Yu (郁钱), Wang, Can-Jun (参军 王), Shi, Hu-Shan (虎山 石), Mi, Yuan-Yuan (元元 弭), Huang, Xiao-Dong (晓东 黄)
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Language:English
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Summary:In this paper we investigate spatiotemporal pattern formation in excitable media with only a long-range link. Besides the trivial solutions of spiral patterns, we find the asymptotic self-sustained target waves in the autonomous tissues. The wave source supporting this kind of new pattern is the oscillatory one-dimensional Winfree-loop self- organized under the presence of a long-range link, which is explored by the dominant phase-advanced driving method. Based on this understanding we can effectively regulate the oscillations of excitable media by suitably arranging the long-range link, including construction of self-sustained target waves with controllable period and wave length, or manipulation of system states between different patterns.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/20/10/108201