paper

Optical Confinement of a Bose-Einstein Condensate

arXiv:cond-mat/9711273 · doi:10.1103/PhysRevLett.80.2027

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 five million condensed atoms were transferred into the optical trap. Densities of up to of Bose condensed atoms were obtained, allowing for a measurement of the three-body decay rate constant for sodium condensates as . At lower densities, the observed 1/e lifetime was more than 10 sec. Simultaneous confinement of Bose-Einstein condensates in several hyperfine states was demonstrated.

5 pages, 4 figures

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