期刊
PHYSICAL REVIEW LETTERS
卷 119, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.190404
关键词
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资金
- Royal Society
- EPSRC [EP/N011759/1]
- ERC (QBox)
- AFOSR
- ARO
- EU Marie-Curie program [MSCA-IF-2015 704832]
- Churchill College, Cambridge
- Trinity College, Cambridge
- Institut Universitaire de France
- Engineering and Physical Sciences Research Council [EP/N011759/1, 1642095] Funding Source: researchfish
- EPSRC [EP/N011759/1] Funding Source: UKRI
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.
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