From ballistic to brownian vortex motion in complex oscillatory media.
We show that the breaking of the rotation symmetry of spiral waves in two-dimensional complex (period-doubled or chaotic) oscillatory media by synchronization defect lines (SDLs) is accompanied by an intrinsic drift of the pattern. Single vortex motion changes from ballistic flights at a well-defined angle from the SDLs to Brownian-like diffusion when the turbulent character of the medium increases. It gives rise, in nonturbulent multispiral regimes, to a novel "vortex liquid."
Max-Planck-Institut für Physik Komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany.
Jörn
J
Davidsen
Ronaldo
R
Erichsen
Raymond
R
Kapral
Hugues
H
Chaté
D001683:Biological Clocks / Q000502:physiology*; D055592:Biophysical Phenomena; D001703:Biophysics; D004058:Diffusion; D008956:Models, Chemical