Experimental comparison of Raman and RF outcouplers for high flux atom lasers

Details Experimental comparison of Raman and RF outcouplers for high flux atom lasers Experimental comparison of Raman and RF outcouplers for high flux atom lasers

2009-08-28

arxiv.org/abs/0908.4147v1

Phys. Rev. A, 81, 013619, (2010)

Physics

Quantum Physics

8 Pages, 5 Figures, Submitted to PRA

Scientific paper

10.1103/PhysRevA.81.013618

We study the properties of an atom laser beam derived from a Bose-Einstein condensate using three different outcouplers, one based on multi-state radio frequency transitions and two others based on Raman transitions capable of imparting momentum to the beam. We first summarize the differences that arise in such systems, and how they may impact on the use of an atom laser in interferometry. Experimentally, we examine the formation of a bound state in all three outcouplers, a phenomenon which limits the atom laser flux, and find that a two-state Raman outcoupler is the preferred option for high flux, low divergence atom laser beams.

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