Phys. Rev. A 67, 011601(R) (2003) [4 pages]Bose-Einstein condensates with attractive interactions on a ring
Considering an effectively attractive quasi-one-dimensional Bose-Einstein condensate of atoms confined in a toroidal trap, we find that the system undergoes a phase transition from a uniform to a localized state, as the magnitude of the coupling constant increases. Both the mean-field approximation, as well as a diagonalization scheme, are used to attack the problem. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.011601
DOI:
10.1103/PhysRevA.67.011601
PACS:
03.75.Hh, 67.40.Db, 05.30.Jp, 05.45.Yv
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