Coexisting pulses in a model for binary-mixture convection

Hermann Riecke*, Wouter Jan Rappel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)4035-4038
Number of pages4
JournalPhysical review letters
Issue number22
StatePublished - 1995

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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