Breathing Spots in a Reaction-Diffusion System

Details Breathing Spots in a Reaction-Diffusion System Breathing Spots in a Reaction-Diffusion System

1996-05-17

arxiv.org/abs/patt-sol/9605004v1

Phys. Rev. Lett. 77, 190 (1996)

Nonlinear Sciences

Pattern Formation and Solitons

4 pages RevTeX, see also http://chaos.ph.utexas.edu/ and http://t7.lanl.gov/People/Aric/

Scientific paper

10.1103/PhysRevLett.77.190

A quasi-2-dimensional stationary spot in a disk-shaped chemical reactor is observed to bifurcate to an oscillating spot when a control parameter is increased beyond a critical value. Further increase of the control parameter leads to the collapse and disappearance of the spot. Analysis of a bistable activator-inhibitor model indicates that the observed behavior is a consequence of interaction of the front with the boundary near a parity breaking front bifurcation.

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