Destruction of stable spiral waves in oscillatory media.
Destruction of stable spiral waves in oscillatory media.
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振荡介质中稳定螺旋波的破坏。
DOI:
10.1103/physreve.68.066312
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Garfinkel,Alan
中科院分区:
文献类型:
--
作者:
Yang,Junzhong;Garfinkel,Alan
We studied spiral wave dynamics in an oscillatory reaction diffusion system. We find a new phenomenon: without the appearance of any global modulation mode, stable spiral waves break up directly. By investigating the one-dimensional version of the system and the isolated local dynamics, we find that the unstable focus in the local dynamics plays an important role. For different boundary conditions (BCs), we find a transition between spiral waves and traveling waves for periodic BCs and drifting spiral wave for no-flux BC.