Observing the Profile of an Atom Laser Beam

Details Observing the Profile of an Atom Laser Beam Observing the Profile of an Atom Laser Beam

2005-08-31

arxiv.org/abs/cond-mat/0508778v2

Phys. Rev. A 72, 063618 (2005)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.72.063618

We report on an investigation of the beam profile of an atom laser extracted from a magnetically trapped $^{87}$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.

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