Observing the Profile of an Atom Laser Beam
arXiv:cond-mat/0508778 · doi:10.1103/PhysRevA.72.063618
Abstract
We report on an investigation of the beam profile of an atom laser extracted from a magnetically trapped Rb Bose-Einstein condensate. The transverse momentum distribution is magnified by a curved mirror for matter waves and a momentum resolution of 1/60 of a photon recoil is obtained. We find the transverse momentum distribution to be determined by the mean-field potential of the residing condensate, which leads to a non-smooth transverse density distribution. Our experimental data are compared with a full 3D simulation of the output coupling process and we find good agreement.
arXiv comment4 pages, 4 figures
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