Quasicontinuous Atom Laser in the Presence of Gravity

2000/07/31 by F. Gerbier, Fabrice Gerbier, Philippe Bouyer +3 · 5 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #cond-mat #physics.atom-ph #quant-ph

paper · pdf · doi:10.1103/physrevlett.86.4729

published as Phys. Rev. Lett. 86, 4729 (2001) · 4 pages, 2 figures

arxiv created 2001/01/29 · openalex publication_date 2001/05/21 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We analyze the extraction from a trapped Bose-Einstein condensate to a nontrapping state of a coherent atomic beam and its subsequent fall, at T = 0 K. Our treatment fully takes gravity into account but neglects the mean-field potential exerted on the free falling beam by the trapped atoms. We derive analytical expressions for the output rate and the output mode of the quasicontinuous "atom laser." Comparison with experimental data of Bloch et al. [Phys. Rev. Lett. 82, 3008 (1999)] is satisfactory.

Citations

• Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor

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