From Labyrinthine Patterns to Spiral Turbulence
arXiv:patt-sol/9401002 · doi:10.1103/PhysRevLett.72.2494
Abstract
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
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