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Hubbard model for atomic impurities bound by the vortex lattice of a rotating BEC

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 BEC. The occupation dependence of these two competing interactions drastically affects the Hubb...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
116
Issue:
24
Pages:
240402
Publication date:
2016-05-05
URN:
uuid:dbf48a32-457c-4624-82d6-c041b4552546
Source identifiers:
622845
Local pid:
pubs:622845

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