Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
1994-01-05
Phys. Rev. Lett. 72, 2494 (1994)
Nonlinear Sciences
Pattern Formation and Solitons
4 pages uuencoded compressed postscript
Scientific paper
10.1103/PhysRevLett.72.2494
A new mechanism for spiral vortex nucleation in nongradient reaction diffusion systems is proposed. It involves two key ingredients: An Ising-Bloch type front bifurcation and an instability of a planar front to transverse perturbations. Vortex nucleation by this mechanism plays an important role in inducing a transition from labyrinthine patterns to spiral turbulence. PACS numbers: 05.45.+b, 82.20.Mj
Hagberg Aric
Meron Ehud
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