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Pré-Publication, Document De Travail Année : 2016

Coherent population trapping in a Raman atom interferometer

Résumé

We investigate the effect of coherent population trapping (CPT) in an atom inter-ferometer gravimeter based on the use of stimulated Raman transitions. We find that CPT leads to significant phase shifts, of order of a few mrad, which may compromise the accuracy of inertial measurements. We show that this effect is rejected by the k-reversal technique, which consists in averaging inertial measurements performed with two opposite orientations of the Raman wavevector k, provided that internal states at the input of the interferometer are kept identical for both configurations.
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Dates et versions

hal-01326554 , version 1 (08-06-2016)

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Bing Cheng, Pierre Gillot, Sébastien Merlet, Franck Pereira dos Santos. Coherent population trapping in a Raman atom interferometer. 2016. ⟨hal-01326554⟩
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