From ballistic to Brownian vortex motion in complex oscillatory media

Details From ballistic to Brownian vortex motion in complex oscillatory media From ballistic to Brownian vortex motion in complex oscillatory media

2004-10-19

arxiv.org/abs/nlin/0410033v1

Physical Review Letters 93, 018305 (2004)

Nonlinear Sciences

Pattern Formation and Solitons

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.018305

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 (SDL) is accompanied by an intrinsic drift of the pattern. Single vortex motion changes from ballistic flights at a well-defined angle from the SDL to Brownian-like diffusion when the turbulent character of the medium increases. It gives rise, in non-turbulent multi-spiral regimes, to a novel ``vortex liquid''.

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