Vortices in a rotating Bose-Einstein condensate under extreme elongation in a harmonic plus quartic trap

Journal Article · Thu Apr 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.043605· OSTI ID:21413335

Huang, C C; Liu, C H; Wu, W C ^[1]

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1. Department of Physics, National Taiwan Normal University, Taipei 11650, Taiwan (China)

The behaviors of a rapidly rotating Bose-Einstein condensate under extreme elongation in a two-dimensional anisotropic harmonic plus quartic trap are investigated. Due to the quartic trap, the system remains stable at high rotating velocity, {Omega}{>=}{omega}{sub perpendicular} ({omega}{sub perpendicular} is the radial harmonic trap frequency), and vortex lattices form even in the absence of the repulsive s-wave interaction (g). When g is present, the interplay between g and the quartic trap potential can lead to rich vortex lattice transition states as a function of {Omega}, to which vortex lattices vanish eventually at some higher {Omega}.

• OSTI ID: 21413335
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
BOSE-EINSTEIN CONDENSATION
DEFORMATION
ELONGATION
FUNCTIONS
INTERACTIONS
PARTIAL WAVES
S WAVES
TRAPS
TWO-DIMENSIONAL CALCULATIONS