Miscibility transition in a binary Bose-Einstein condensate induced by linear interconversion

Ilya M. Merhasin, Boris A. Malomed, Rodislav Driben

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

We consider a model of a two-component condensate in one dimension, where the components represent two different spin states of the same atom. We demonstrate that linear interconversion between them, induced by a resonant electromagnetic wave, can make the immiscible binary condensate miscible. This transition is predicted by means of a variational approximation, and is then confirmed by direct numerical solutions of the symmetric and asymmetric models (the asymmetry is accounted for by a chemical-potentil difference between the components). The dependence of the corresponding order parameters on the linear-coupling strengths reveals a typical phase transition of the second kind. However, in dynamic states the species may remain separated, even if they would get mixed in a static configuration.

Original languageEnglish
Pages (from-to)18-22
Number of pages5
JournalPhysica Scripta
VolumeT116
DOIs
StatePublished - 2005
EventInternational Workshop on Theoretical Plasma Physics: Modern Plasma Science - Trieste, Italy
Duration: 5 Jul 200416 Jul 2004

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