Vortices in a rotating Bose-Einstein condensate under extreme elongation in a harmonic plus quartic trap
Journal Article
·
· Physical Review. A
- 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, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevA.81.043605; (c) 2010 The American Physical Society; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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