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Phonon resonances in atomic currents through Bose-Fermi mixtures in optical lattices

Abstract:

We present an analysis of Bose-Fermi mixtures in optical lattices for the case where the lattice potential of the fermions is tilted and the bosons (in the superfluid phase) are described by Bogoliubov phonons. It is shown that the Bogoliubov phonons enable hopping transitions between fermionic Wannier-Stark states; these transitions are accompanied by energy dissipation into the superfluid and result in a net atomic current along the lattice. We derive a general expression for the drift velo...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevA.82.043617

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
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Institution:
University of Oxford
Department:
Oxford
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
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Name:
European Science Foundation
Funding agency for:
Jaksch, D
Grant:
(EPSRC Grant No. EP/E041612/1)
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Name:
Ministry of Education, Singapore
Funding agency for:
Clark, S
Jaksch, D
Grant:
(EPSRC Grant No. EP/E041612/1)
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Name:
National Research Foundation (Singapore)
Funding agency for:
Clark, S
Jaksch, D
Grant:
(EPSRC Grant No. EP/E041612/1)
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Name:
Deutsche Forschungsgemeinschaft
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Name:
Swiss National Science Foundation
Publisher:
American Physical Society
Journal:
Physical Review A More from this journal
Volume:
82
Issue:
4
Article number:
043617
Publication date:
2010-07-01
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
Keywords:
Pubs id:
pubs:168700
UUID:
uuid:0c388855-388e-4d9f-a6ee-66ecd6ab253b
Local pid:
pubs:168700
Source identifiers:
168700
Deposit date:
2013-03-20

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