TY - JOUR

T1 - Miscibility transition in a binary Bose-Einstein condensate induced by linear interconversion

AU - Merhasin, Ilya M.

AU - Malomed, Boris A.

AU - Driben, Rodislav

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=42349095945&partnerID=8YFLogxK

U2 - 10.1238/Physica.Topical.116a00018

DO - 10.1238/Physica.Topical.116a00018

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AN - SCOPUS:42349095945

SN - 0281-1847

VL - T116

SP - 18

EP - 22

JO - Physica Scripta

JF - Physica Scripta

T2 - International Workshop on Theoretical Plasma Physics: Modern Plasma Science

Y2 - 5 July 2004 through 16 July 2004

ER -