Excitable media in a chaotic flow.

@article{Neufeld2001ExcitableMI,
  title={Excitable media in a chaotic flow.},
  author={Zolt{\'a}n Neufeld},
  journal={Physical review letters},
  year={2001},
  volume={87 10},
  pages={108301}
}
The response to a localized perturbation of an excitable medium under stirring by chaotic advection is investigated. It is found that below a critical stirring rate a localized perturbation produces a coherent global excitation of the system. For very slow stirring, however, the coherence of the global excitation is gradually lost. We propose a simple model to describe the effect of the flow on the excitable dynamics, and explain the observed behavior as a consequence of a steady excited… CONTINUE READING

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