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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
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A
volume
76
pages
043627 - 043633
publisher
American Physical Society
external identifiers
  • wos:000250619700168
  • scopus:35548939432
DOI
10.1103/PhysRevA.76.043627
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
64ed7638-f68b-4d98-9905-78588f920e17 (old id 818595)
date added to LUP
2016-04-04 11:41:53
date last changed
2022-02-28 20:18:44
@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}},
  series       = {{Physical Review A}},
  title        = {{Metastability of persistent currents in trapped gases of atoms}},
  url          = {{http://dx.doi.org/10.1103/PhysRevA.76.043627}},
  doi          = {{10.1103/PhysRevA.76.043627}},
  volume       = {{76}},
  year         = {{2007}},
}