Two-component Bose gases under rotation

Journal Article · Fri Apr 04 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2915607· OSTI ID:21136993

Bargi, S; Kaerkkaeinen, K; Christensson, J; Reimann, S M ^[1]; Kavoulakis, G M ^[2]; Manninen, M ^[3]

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1. Mathematical Physics, LTH, Lund University, SE-22100 Lund (Sweden)
2. Department of Sciences, TEI of Crete, P.O. Box 1939 Heraklion, 71004 Greece (Greece)
3. NanoScience Center, Department of Physics, FIN-40014 University of Jyvaeskylae (Finland)

We examine the formation of vortices in a one- and two-component gas of bosonic atoms in a harmonic trap that is set rotating. Both the mean-field Gross-Pitaevskii approach, and the numerical diagonalization method are employed. For a two-component Bose gas, we show that beside the well-known coreless vortices of single quantization, the interatomic interactions between the two species may lead to coreless vortices of multiple quantization. We furthermore comment on the geometries of the interlaced vortex patterns. In the limit of weak interactions, we finally demonstrate a number of exact results.

• OSTI ID: 21136993
• Journal Information: AIP Conference Proceedings, Vol. 995, Issue 1; Conference: WNMP 2007: Workshop on nuclei and mesoscopic physics, East Lansing, MI (United States), 20-22 Oct 2007; Other Information: DOI: 10.1063/1.2915607; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
INTERATOMIC FORCES
MEAN-FIELD THEORY
QUANTIZATION
QUANTUM DOTS
ROTATION
SCHROEDINGER EQUATION
TRAPS
VORTICES
WEAK INTERACTIONS