Rotational bifurcation of localized dissipative structures

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A topic of great interest for pattern-forming systems is the possibility of a spontaneous change in symmetry and dynamics as one slowly varies an external parameter. In this letter, we identify that a stationary localized structure without rotational symmetry, such as a pair of bound dissipative solitons, can spontaneously begin to rotate. The underlying mechanism is similar to the widely studied mechanism of the drift bifurcation in which structures begin to drift at constant velocity. We find a particular example of this new bifurcation for a 3-component reaction-diffusion system in 2 dimensions, and show that it can precede the drift bifurcation.
Publisher
E D P SCIENCES
Issue Date
2003-08
Language
English
Article Type
Article
Citation

EUROPHYSICS LETTERS, v.63, no.3, pp.361 - 367

ISSN
0295-5075
DOI
10.1209/epl/i2003-00532-1
URI
http://hdl.handle.net/10203/261942
Appears in Collection
PH-Journal Papers(저널논문)
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