Forced Entrainment and Elimination of Spiral Waves for the FitzHugh-Nagumo Equation
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概要
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We study some effects of spatial inhomogeneity and external forcing on spiral waves in the FitzHugh-Nagumo equation and attempt in a numerical investigation to eliminate spiral patterns using "entrainment" and "trapping". We find that a target pattern generated by circular fast pacemaker region can overwhelm a spiral pattern and eliminate spiral waves. We also find that a spiral pattern can be trapped in a less excitable region. Through control of this less excitable region, a pair of spirals can be annihilated. In addition, it is shown that spiral waves are entrained and disappear under a spatially uniform periodic forcing if the forcing is sufficiently strong. We discuss two mechanisms causing complete entrainment.
- 理論物理学刊行会の論文
- 2002-08-25
著者
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Sakaguchi Hidetsugu
Department Of Applied Physics Faculty Of Engineering Kyushu University
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Sakaguchi Hidetsugu
Department Of Applied Science For Electronics And Materials Interdisciplinary Graduate School Of Eng
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Sakaguchi Hidetsugu
Department Of Applied Science For Electronics And Materials Interdisciplinary Graduate School Of Eng
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Sakaguchi Hidetsugu
Department Of Applied Science For Electronics And Materials Interdisciplinary Graduate School Of Engineering Sciences Kyushu University
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FUJIMOTO Takefumi
Department of Applied Science for Electronics and Materials, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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Fujimoto Takefumi
Department Of Applied Science For Electronics And Materials Interdisciplinary Graduate School Of Engineering Sciences Kyushu University
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SAKAGUCHI Hidetsugu
Department of Physics, College of General Education, Kyushu University
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SAKAGUCHI Hidetsugu
Department of Physics, Kyoto University
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SAKAGUCHI Hidetsugu
Department of Applied Physics,Faculty of Engineering,Kyushu University
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SAKAGUCHI Hidetsugu
Department of Applied Physics, Faculty of Enineering, Kyushu University
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SAKAGUCHI Hidetsugu
Department of Applied Sciences for Electronics and Materials Interdisciplinary Graduate School of Engineering Sciences Kyushu University
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