Controlling Spiral Dynamics in Excitable Media by a Weakly Localized Pacing
LI Bing-Wei1, SUN Li-Li2, CHEN Bin2, YING He-Ping1
1Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 3100272Department of Physics, Hangzhou Normal University, Hangzhou 310027
Controlling Spiral Dynamics in Excitable Media by a Weakly Localized Pacing
LI Bing-Wei1;SUN Li-Li2;CHEN Bin2;YING He-Ping1
1Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 3100272Department of Physics, Hangzhou Normal University, Hangzhou 310027
摘要Spiral dynamics controlled by a weakly localized pacing around the spiral tip is investigated. Numerical simulations show two distinct characteristics when the pacing is applied with the weak amplitude for suitable frequencies: for a rigidly rotating spiral, a transition from rigid rotation to meandering motion is observed, and for unstable spiral waves, spiral breakup can be prevented. Successfully preventing spiral breakup is relevant to the modulation of the tip trajectory induced by a localized pacing.
Abstract：Spiral dynamics controlled by a weakly localized pacing around the spiral tip is investigated. Numerical simulations show two distinct characteristics when the pacing is applied with the weak amplitude for suitable frequencies: for a rigidly rotating spiral, a transition from rigid rotation to meandering motion is observed, and for unstable spiral waves, spiral breakup can be prevented. Successfully preventing spiral breakup is relevant to the modulation of the tip trajectory induced by a localized pacing.
LI Bing-Wei;SUN Li-Li;CHEN Bin;YING He-Ping. Controlling Spiral Dynamics in Excitable Media by a Weakly Localized Pacing[J]. 中国物理快报, 2007, 24(8): 2415-2418.
LI Bing-Wei, SUN Li-Li, CHEN Bin, YING He-Ping. Controlling Spiral Dynamics in Excitable Media by a Weakly Localized Pacing. Chin. Phys. Lett., 2007, 24(8): 2415-2418.
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2007, Vol. 24 
