Exotic vortex lattices in two-species Bose-Einstein condensates

Exotic vortex lattices in two-species Bose-Einstein condensates

We numerically investigate vortex lattices in rotating two-component Bose-Einstein condensates in which the two components have unequal atomic masses and interact attractively with each other. For sufficiently strong attraction, the system is found to exhibit exotic ground-state structures in a harm...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2012-04, Vol.85 (4), Article 043613
Hauptverfasser: Kuopanportti, Pekko, Huhtamäki, Jukka A. M., Möttönen, Mikko
Format: Artikel
Sprache:eng
Schlagworte:
Atomic properties
Atomic structure
Attraction
Bose-Einstein condensates
Fluid flow
Lattices
Molecular structure
Vortices
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Zusammenfassung:We numerically investigate vortex lattices in rotating two-component Bose-Einstein condensates in which the two components have unequal atomic masses and interact attractively with each other. For sufficiently strong attraction, the system is found to exhibit exotic ground-state structures in a harmonic trap, such as lattices having a square geometry or consisting of two-quantum vortices. The obtained states satisfy the Feynman relation, and they can be realized with current experimental techniques.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.85.043613