Atom interferometry using - Raman transitions between and
arXiv:2111.05642 · doi:10.1103/PhysRevA.105.033318
Abstract
We report on the experimental demonstration of a horizontal accelerometer based on atom interferometry using counterpropagative Raman transitions between the states and of Rb. Compared to the transition usually used in atom interferometry, our scheme presents the advantages to have only a single counterpropagating transition allowed in a retroreected geometry, to use the same polarization configuration than the magneto-optical trap and to allow the control of the atom trajectory with magnetic forces. We demonstrate horizontal acceleration measurement in a close-to-zero velocity regime using a singlediffraction Raman process with a short-term sensitivity of m.s.Hz. We discuss specific features of the technique such as spontaneous emission, light-shifts and effects of magnetic field inhomogeneities. We finally give possible applications of this technique in metrology or for cold-atom inertial sensors dedicated to onboard applications.
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