Coexisting Pulses in a Model for Binary-Mixture Convection

Abstract

We address the striking coexistence of localized waves (`pulses') of different lengths which was observed in recent experiments and full numerical simulations of binary-mixture convection. Using a set of extended Ginzburg-Landau equations, we show that this multiplicity finds a natural explanation in terms of the competition of two distinct, physical localization mechanisms; one arises from dispersion and the other from a concentration mode. This competition is absent in the standard Ginzburg-Landau equation. It may also be relevant in other waves coupled to a large-scale field.

5 pages revtex with 4 postscript figures (everything uuencoded)

References in corpus (1)

• Attractive Interaction Between Pulses in a Model for Binary-Mixture Convection

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• Solitary Waves under the Influence of a Long-Wave Mode
• Bound Pairs of Fronts in a Real Ginzburg-Landau Equation Coupled to a Mean Field
• Tunable front interaction and localization of periodically forced waves
• Holes and chaotic pulses of traveling waves coupled to a long-wave mode