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Hubbard model for atomic impurities bound by the vortex lattice of a rotating Bose-Einstein condensate

Abstract:

We investigate cold bosonic impurity atoms trapped in a vortex lattice formed by condensed bosons of another species. We describe the dynamics of the impurities by a bosonic Hubbard model containing occupation-dependent parameters to capture the effects of strong impurity-impurity interactions. These include both a repulsive direct interaction and an attractive effective interaction mediated by the Bose-Einstein condensate. The occupation dependence of these two competing interactions drastic...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
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Name:
European Union
Grant:
Horizon 2020 641277/
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Name:
European Union’s Seventh Framework Programme
Grant:
FP7/2007-2013
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Name:
European Research Council
Grant:
319286
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Name:
National Research Foundation Singapore
Grant:
R-146-000-196-112
Publisher:
American Physical Society
Journal:
Physical Review Letters More from this journal
Volume:
116
Issue:
24
Pages:
240402
Publication date:
2016-06-14
Acceptance date:
2016-05-12
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pmid:
27367366
Language:
English
Keywords:
Pubs id:
pubs:632217
UUID:
uuid:b6750d64-7e1b-4103-b9a0-b5ef05d53066
Local pid:
pubs:632217
Source identifiers:
632217
Deposit date:
2016-09-07

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