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Quantum depletion of a homogeneous Bose-Einstein condensate

Abstract:
We measure the quantum depletion of an interacting homogeneous Bose-Einstein condensate and confirm the 70-year-old theory of Bogoliubov. The observed condensate depletion is reversibly tunable by changing the strength of the interparticle interactions. Our atomic homogeneous condensate is produced in an optical-box trap, the interactions are tuned via a magnetic Feshbach resonance, and the condensed fraction is determined by momentum-selective two-photon Bragg scattering.
Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1103/physrevlett.119.190404

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ORCID:
0000-0003-3877-8478
Clément, D More by this author
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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Oxford college:
WORCESTER COLLEGE
ORCID:
0000-0002-6881-5690
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Royal Society More from this funder
Horizon 2020 More from this funder
Air Force Office of Scientific Research More from this funder
Army Research Office More from this funder
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
119
Issue:
19
Pages:
190404
Publication date:
2017-11-07
Acceptance date:
2017-10-10
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:856940
URN:
uri:728952a8-f707-4987-932a-a06f008102ba
UUID:
uuid:728952a8-f707-4987-932a-a06f008102ba
Local pid:
pubs:856940
Language:
English
Keywords:

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