Observation of Strong Quantum Depletion in a Gaseous Bose-Einstein Condensate

Abstract

We studied quantum depletion in a gaseous Bose-Einstein condensate. An optical lattice enhanced the atomic interactions and modified the dispersion relation resulting in strong quantum depletion. The depleted fraction was directly observed as a diffuse background in the time-of-flight images. Bogoliubov theory provided a semi-quantitative description for our observations of depleted fractions in excess of 50%.

Replaced with accepted version in PRL

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Cited by in corpus (70)

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• Ground State Properties of Spin-Orbit Coupled Bose Gases for Arbitrary Interactions
• Beyond Bogoliubov Dynamics
• Hyperbolic Bloch equations: atom-cluster kinetics of an interacting Bose gas
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