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

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

2006-01-10

arxiv.org/abs/cond-mat/0601184v2

Phys. Rev. Lett. 96, 180405 (2006)

Physics

Condensed Matter

Other Condensed Matter

Replaced with accepted version in PRL

Scientific paper

10.1103/PhysRevLett.96.180405

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%.

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