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Polaron physics in optical lattices

Abstract:

We investigate the effects of a nearly uniform Bose-Einstein condensate (BEC) on the properties of immersed trapped impurity atoms. Using a weak-coupling expansion in the BEC-impurity interaction strength, we derive a model describing polarons, i.e., impurities dressed by a coherent state of Bogoliubov photons, and apply it to ultracold bosonic atoms in an optical lattice. We show that, with increasing BEC temperature, the transport properties of the impurities change from coherent to diffusi...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevA.76.011605

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Dieter Jaksch Theory Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Dieter Jaksch Theory Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Dieter Jaksch Theory Group
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Dieter Jaksch Theory Group
Role:
Author
More from this funder
Funding agency for:
Klein, A
More from this funder
Funding agency for:
Bruderer, M
European Union More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review A Journal website
Volume:
76
Issue:
1
Article number:
011605(R)
Publication date:
2007-07-01
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
Language:
English
Keywords:
Subjects:
UUID:
uuid:c54df3da-b6e2-425b-8d8b-fc65ff68ec79
Local pid:
ora:1784
Deposit date:
2008-03-14

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