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arXiv · 0812.2310

Ramsey interferometry with an atom laser

D. Döring·J. E. Debs·N. P. Robins·C. Figl·P. A. Altin·J. D. Close
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Abstract

We present results on a free-space atom interferometer operating on the first order magnetically insensitive |F=1,mF=0> -> |F=2,mF=0> transition of Bose-condensed 87Rb atoms. A pulsed atom laser is output-coupled from a Bose-Einstein condensate and propagates through a sequence of two internal state beam splitters, realized via coherent Raman transitions between the two interfering states. We observe Ramsey fringes with a visibility close to 100% and determine the current and the potentially achievable interferometric phase sensitivity. This system is well suited to testing recent proposals for generating and detecting squeezed atomic states.

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D. Döring, J. E. Debs, N. P. Robins, C. Figl, P. A. Altin, J. D. Close. 2008-12-12. Ramsey interferometry with an atom laser. https://doi.org/10.1364/oe.17.020661

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