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Rapidly rotating Bose-Einstein condensates in anharmonic potentials

Kavoulakis, Georgios LU and Baym, G (2003) In New Journal of Physics 5.
Abstract
Rapidly rotating Bose-Einstein condensates confined in anharmonic traps can exhibit a rich variety of vortex phases, including a vortex lattice, a vortex lattice with a hole, and a giant vortex. Using an augmented Thomas - Fermi variational approach to determine the ground state of the condensate in the rotating frame - valid for sufficiently strongly interacting condensates - we determine the transitions between these three phases for a quadratic- plus- quartic confining potential. Combining the present results with previous numerical simulations of small rotating condensates in such anharmonic potentials, we delineate the general structure of the zero-temperature phase diagram.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
New Journal of Physics
volume
5
publisher
IOP Publishing Ltd.
external identifiers
  • wos:000183231300002
  • scopus:2342647031
ISSN
1367-2630
DOI
10.1088/1367-2630/5/1/351
language
English
LU publication?
yes
id
20c3683a-d1a2-4213-873d-4b5abbb3be1e (old id 309538)
date added to LUP
2007-09-16 07:10:46
date last changed
2018-01-07 09:35:46
@article{20c3683a-d1a2-4213-873d-4b5abbb3be1e,
  abstract     = {Rapidly rotating Bose-Einstein condensates confined in anharmonic traps can exhibit a rich variety of vortex phases, including a vortex lattice, a vortex lattice with a hole, and a giant vortex. Using an augmented Thomas - Fermi variational approach to determine the ground state of the condensate in the rotating frame - valid for sufficiently strongly interacting condensates - we determine the transitions between these three phases for a quadratic- plus- quartic confining potential. Combining the present results with previous numerical simulations of small rotating condensates in such anharmonic potentials, we delineate the general structure of the zero-temperature phase diagram.},
  articleno    = {51},
  author       = {Kavoulakis, Georgios and Baym, G},
  issn         = {1367-2630},
  language     = {eng},
  publisher    = {IOP Publishing Ltd.},
  series       = {New Journal of Physics},
  title        = {Rapidly rotating Bose-Einstein condensates in anharmonic potentials},
  url          = {http://dx.doi.org/10.1088/1367-2630/5/1/351},
  volume       = {5},
  year         = {2003},
}