Scroll wave instabilities in an excitable chemical medium.
Two kinds of scroll wave instabilities were studied experimentally in the excitable Belousov-Zhabotinsky reaction: three-dimensional meandering and negative line tension of the scroll wave filament. The filament displays a flat zigzag shape in the initial stages of the experiment. As the chemical medium ages, the filament assumes a wiggly shape while its length increases substantially. Numerical simulations underpin the experimental findings and their interpretation.
Biophysics Group, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany.
Chaiya
C
Luengviriya
Ulrich
U
Storb
Gert
G
Lindner
Stefan C
SC
Müller
Markus
M
Bär
Marcus J B
MJ
Hauser