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Spin–orbit-coupled Bose–Einstein-condensed atoms confined in annular potentials

Karabulut, Elife LU ; Malet, Francesc LU ; Fetter, Alexander ; Kavoulakis, Georgios LU and Reimann, Stephanie LU (2016) In New Journal of Physics 18.
Abstract
A spin–orbit-coupled Bose–Einstein-condensed cloud of atoms confined in an annular trapping potential shows a variety of phases that we investigate in the present study. Starting with the non- interacting problem, the homogeneous phase that is present in an untrapped system is replaced by a sinusoidal density variation in the limit of a very narrow annulus. In the case of an untrapped system there is another phase with a striped-like density distribution, and its counterpart is also found in the limit of a very narrow annulus. As the width of the annulus increases, this picture persists qualitatively. Depending on the relative strength between the inter- and the intra-components, interactions either favor the striped phase, or suppress it,... (More)
A spin–orbit-coupled Bose–Einstein-condensed cloud of atoms confined in an annular trapping potential shows a variety of phases that we investigate in the present study. Starting with the non- interacting problem, the homogeneous phase that is present in an untrapped system is replaced by a sinusoidal density variation in the limit of a very narrow annulus. In the case of an untrapped system there is another phase with a striped-like density distribution, and its counterpart is also found in the limit of a very narrow annulus. As the width of the annulus increases, this picture persists qualitatively. Depending on the relative strength between the inter- and the intra-components, interactions either favor the striped phase, or suppress it, in which case either a homogeneous, or a sinusoidal-like phase appears. Interactions also give rise to novel solutions with a nonzero circulation. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
New Journal of Physics
volume
18
publisher
IOP Publishing
external identifiers
  • scopus:84957543776
ISSN
1367-2630
DOI
10.1088/1367-2630/18/1/015013
language
English
LU publication?
yes
id
6bfb9ae5-6699-4838-b694-59d5327a91c8
date added to LUP
2019-05-15 08:52:25
date last changed
2020-07-08 13:15:48
@article{6bfb9ae5-6699-4838-b694-59d5327a91c8,
  abstract     = {A spin–orbit-coupled Bose–Einstein-condensed cloud of atoms confined in an annular trapping potential shows a variety of phases that we investigate in the present study. Starting with the non- interacting problem, the homogeneous phase that is present in an untrapped system is replaced by a sinusoidal density variation in the limit of a very narrow annulus. In the case of an untrapped system there is another phase with a striped-like density distribution, and its counterpart is also found in the limit of a very narrow annulus. As the width of the annulus increases, this picture persists qualitatively. Depending on the relative strength between the inter- and the intra-components, interactions either favor the striped phase, or suppress it, in which case either a homogeneous, or a sinusoidal-like phase appears. Interactions also give rise to novel solutions with a nonzero circulation.},
  author       = {Karabulut, Elife and Malet, Francesc and Fetter, Alexander and Kavoulakis, Georgios and Reimann, Stephanie},
  issn         = {1367-2630},
  language     = {eng},
  publisher    = {IOP Publishing},
  series       = {New Journal of Physics},
  title        = {Spin–orbit-coupled Bose–Einstein-condensed atoms confined in annular potentials},
  url          = {http://dx.doi.org/10.1088/1367-2630/18/1/015013},
  doi          = {10.1088/1367-2630/18/1/015013},
  volume       = {18},
  year         = {2016},
}