Noise and complexity in three-dimensional excitable media

被引：7
|
作者：
Zhou, Y [1 ]
Jung, P [1 ]
机构：
[1] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
来源：
EUROPHYSICS LETTERS | 2000年 / 49卷 / 06期
关键词：
D O I：
10.1209/epl/i2000-00206-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the effects of external noise on pattern formation in a three-dimensional, pulse coupled excitable medium. It is found that for weak to moderate coupling between the cells, simple scroll waves evolve into complex patterns. The increase of the lengths of vortex lines quantifies the increasing complexity of the patterns. Noise nucleates patterns in the bulk of the medium via the formation of small vortex rings that subsequently expand for weak to moderate coupling.
引用
收藏
页码：695 / 701
页数：7
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