Publications by Robert Smith

Quantum Depletion of a Homogeneous Bose-Einstein Condensate.

Phys Rev Lett 119 (2017) 190404-

R Lopes, C Eigen, N Navon, D Clément, RP Smith, Z Hadzibabic

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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