Traveling-wave fragments in anisotropic excitable media
- 1 June 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 51 (6) , R5193-R5196
- https://doi.org/10.1103/physreve.51.r5193
Abstract
Experiments with an anisotropic chemical excitable medium—a catalytic chemical reaction on a single crystal surface—reveal a kind of stable wave pattern representing single traveling-wave fragments. Their existence is attributed to the presence of a strong state-dependent diffusion anisotropy in the medium. A simple theory of traveling fragments setting general conditions for their observation is proposed. Its conclusions are confirmed by numerical simulations of a reaction-diffusion model. Our analysis suggests that traveling-wave fragments are a general property of excitable media with strong state-dependent anisotropy.Keywords
This publication has 1 reference indexed in Scilit:
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