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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
Version:
Publisher's version

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Publisher copy:
10.1103/PhysRevA.76.011605

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Institution:
University of Oxford
Research group:
Dieter Jaksch Theory Group
Department:
Mathematical,Physical & Life Sciences Division - Physics - Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Dieter Jaksch Theory Group
Department:
Mathematical,Physical & Life Sciences Division - Physics - Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Dieter Jaksch Theory Group
Department:
Mathematical,Physical & Life Sciences Division - Physics - Atomic & Laser Physics
Role:
Author
More by this author
Institution:
University of Oxford
Research group:
Dieter Jaksch Theory Group
Department:
Mathematical,Physical & Life Sciences Division - Physics - Atomic & Laser Physics
Role:
Author
More from this funder
Funding agency for:
Martin Bruderer
More from this funder
Funding agency for:
Alexander Klein
European Union More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review A Journal website
Volume:
76
Issue:
1
Pages:
Article: 011605(R)
Publication date:
2007-07-05
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
URN:
uuid:c54df3da-b6e2-425b-8d8b-fc65ff68ec79
Local pid:
ora:1784

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