Optical Confinement of a Bose-Einstein Condensate

1997/11/25 by Dan Stamper-Kurn, D. M. Stamper-Kurn, M. R. Andrews +7 · 39 citations
Physics and Astronomy · #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #cond-mat

paper · pdf · doi:10.1103/physrevlett.80.2027

5 pages, 4 figures

arxiv created 1997/11/25 · openalex publication_date 1998/03/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Bose-Einstein condensates of sodium atoms have been confined in an optical dipole trap using a single focused infrared laser beam. This eliminates the restrictions of magnetic traps for further studies of atom lasers and Bose-Einstein condensates. More than 5\ifmmode×\else\texttimes\fi10⁶ condensed atoms were transferred into the optical trap. Densities of up to 3\ifmmode×\else\texttimes\fi10¹⁵cm^\ensuremath-3 of Bose condensed atoms were obtained, allowing for a measurement of the three-body loss rate constant for sodium condensates as K₃\phantom\rule0ex0ex=\phantom\rule0ex0ex1.1(3)\ifmmode×\else\texttimes\fi10^\ensuremath-30cm⁶s^\ensuremath-1. At lower densities, the observed 1/e lifetime was longer than 10 s. Simultaneous confinement of Bose-Einstein condensates in several hyperfine states was demonstrated.

Citations

• Evidence of Bose-Einstein Condensation in an Atomic Gas with Attractive Interactions
• Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor
• Observation of Interference Between Two Bose Condensates
• Bose-Einstein Condensation in a Gas of Sodium Atoms

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