Phys. Rev. Lett. 77, 2105–2108 (1996)Transition from Simple Rotating Chemical Spirals to Meandering and Traveling SpiralsReceived 8 May 1996; published in the issue dated 2 September 1996 Experiments on the Belousov-Zhabotinksy reaction unfold the bifurcation from simple (temporally periodic) rotating spirals to meandering (quasiperiodic) spirals in the neighborhood of a codimension-2 point. There are two types of meandering spirals, inward-petal (epicycloid) spirals and outward-petal (hypocycloid) spirals. These two types of meandering regimes are separated in the phase diagram by a line of traveling spirals that terminates at the codimension-2 point. The observations are in good accord with theory. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.2105
DOI:
10.1103/PhysRevLett.77.2105
PACS:
82.40.Bj, 82.20.Mj, 87.90.+y
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