Buckling of scroll waves
Pattern Formation and Solitons
2015-06-05 v4
Abstract
A scroll wave in a sufficiently thin layer of an excitable medium with negative filament tension can be stable nevertheless due to filament rigidity. Above a certain critical thickness of the medium, such scroll wave will have a tendency to deform into a buckled, precessing state. Experimentally this will be seen as meandering of the spiral wave on the surface, the amplitude of which grows with the thickness of the layer, until a break-up to scroll wave turbulence happens. We present a simplified theory for this phenomenon and illustrate it with numerical examples.
Cite
@article{arxiv.1205.5243,
title = {Buckling of scroll waves},
author = {Hans Dierckx and Henri Verschelde and Ozgur Selsil and Vadim Biktashev},
journal= {arXiv preprint arXiv:1205.5243},
year = {2015}
}
Comments
4 pages main text + 5 pages appendix, 4+2 figures and a movie, as accepted by Phys Rev Letters 2012/09/24