Two component bosonic Josephson junctions in elongated traps

We study binary mixtures of Bose-Einstein condensates confined in a two-well potential within the framework of the Gross-Pitaevskii equation. We re-examine both the single component and the binary mixture cases for such a potential. We investigate the most usual dimensional reductions used to solve...

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Bibliographic Details
Published in:Molecular physics 2011-12, Vol.109 (23-24), p.2763-2771
Main Authors: Melé-Messeguer, M., Juliá-Díaz, B., Guilleumas, M., Polls, A.
Format: Article
Language:English
Subjects:
BECs
Binary mixtures
Bose-Einstein condensates
Bose-Einstein condensation
Condensació de Bose-Einstein
condensates
Condensed Matter
double-well potentials
Elongation
Josephson junctions
Mathematical analysis
Mathematical models
Molecular physics
Physics
Reduction
Superconductivitat
Superconductivity
Three dimensional
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Summary:We study binary mixtures of Bose-Einstein condensates confined in a two-well potential within the framework of the Gross-Pitaevskii equation. We re-examine both the single component and the binary mixture cases for such a potential. We investigate the most usual dimensional reductions used to solve the Gross-Pitaevskii equations, including the one proposed by Reatto and collaborators. To this end, we compare numerical simulations of the 1D reductions with the full 3D numerical solutions of the Gross-Pitaevskii equation. Our analysis considers an experimentally feasible binary mixture of an F = 1 spinor condensate where two of its Zeeman manifolds are populated.
ISSN:0026-8976
1362-3028
DOI:10.1080/00268976.2011.615763