Spiral wave formation in three-dimensional excitable media

被引:57
作者
Amemiya, T
Kadar, S
Kettunen, P
Showalter, K
机构
[1] Department of Chemistry, West Virginia University, Morgantown, WV
关键词
D O I
10.1103/PhysRevLett.77.3244
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A mechanism for the generation of spiral waves in three-dimensional excitable media is described. Experiments using the photosensitive Belousov-Zhabotinsky reaction shaw that circular or spiral waves appear in the wake of a propagating wave following a local perturbation in illumination intensity. The induced waves arise from three-dimensional scroll waves striking the upper boundary of the excitable medium. Spiral waves,ur. formed over a range of illumination intensities and perturbation times which place the induced wave in the vulnerable region of the refractory wave back.
引用
收藏
页码:3244 / 3247
页数:4
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