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Metastability of persistent currents in trapped gases of atoms

Kärkkäinen, Kimmo LU ; Cremon, Jonas LU ; Reinisch, Gilbert; Kavoulakis, Georgios LU and Reimann, Stephanie LU (2007) In Physical Review A 76. p.043627-043633
Abstract
We examine the conditions that give rise to metastable, persistent currents in a trapped Bose-Einstein condensate. A necessary condition for the stability of persistent currents is that the trapping potential is not a monotonically increasing function of the distance from the trap center. Persistent currents also require that the interatomic interactions are sufficiently strong and repulsive. Finally, any off-center vortex state is shown to be unstable, while a driven gas shows hysteresis.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
76
pages
043627 - 043633
publisher
American Physical Society (APS)
external identifiers
  • WOS:000250619700168
  • Scopus:35548939432
DOI
10.1103/PhysRevA.76.043627
language
English
LU publication?
yes
id
64ed7638-f68b-4d98-9905-78588f920e17 (old id 818595)
date added to LUP
2008-01-08 11:55:01
date last changed
2017-01-01 08:04:44
@article{64ed7638-f68b-4d98-9905-78588f920e17,
  abstract     = {We examine the conditions that give rise to metastable, persistent currents in a trapped Bose-Einstein condensate. A necessary condition for the stability of persistent currents is that the trapping potential is not a monotonically increasing function of the distance from the trap center. Persistent currents also require that the interatomic interactions are sufficiently strong and repulsive. Finally, any off-center vortex state is shown to be unstable, while a driven gas shows hysteresis.},
  author       = {Kärkkäinen, Kimmo and Cremon, Jonas and Reinisch, Gilbert and Kavoulakis, Georgios and Reimann, Stephanie},
  language     = {eng},
  pages        = {043627--043633},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A},
  title        = {Metastability of persistent currents in trapped gases of atoms},
  url          = {http://dx.doi.org/10.1103/PhysRevA.76.043627},
  volume       = {76},
  year         = {2007},
}