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arXiv · 1706.01867

Quantum depletion of a homogeneous Bose-Einstein condensate

Raphael Lopes·Christoph Eigen·Nir Navon·David Clément·Robert P. Smith·Zoran Hadzibabic
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Abstract

We have measured the quantum depletion of an interacting homogeneous Bose-Einstein condensate, and confirmed the 70-year old theory of N.N. Bogoliubov. The observed condensate depletion is reversibly tuneable 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 probed by coherent two-photon Bragg scattering.

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Raphael Lopes, Christoph Eigen, Nir Navon, David Clément, Robert P. Smith, Zoran Hadzibabic. 2017-06-06. Quantum depletion of a homogeneous Bose-Einstein condensate. https://doi.org/10.1103/physrevlett.119.190404

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