Quantum gravimetry in the same internal state using composite light Raman pulses

We introduce an atomic gravimetric sequence using Raman-type composite light pulses that excites a superposition of two momentum states with the same internal level. The scheme allows the suppression of common noise, making it less sensitive to external fluctuations of electromagnetic fields. The Ra...

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Bibliographic Details
Published in:arXiv.org 2021-04
Main Authors: Olivares-Rentería, G A, Lancheros-Naranjo, D A, Gomez, E, Franco-Villafañe, J A
Format: Article
Language:English
Subjects:
Electromagnetic fields
Gravimetry
Interference fringes
Mathematical analysis
Momentum transfer
Noise sensitivity
Rabi frequency
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Summary:We introduce an atomic gravimetric sequence using Raman-type composite light pulses that excites a superposition of two momentum states with the same internal level. The scheme allows the suppression of common noise, making it less sensitive to external fluctuations of electromagnetic fields. The Raman beams are generated with a fiber modulator and are capable of momentum transfer in opposite directions. We obtain analytical expressions for the interference fringes in terms of three perturbative parameters that characterize the imperfections due to undesired frequencies introduced by the modulation process. We find special values of the Rabi frequency that improve the fringes visibility.
ISSN:2331-8422
DOI:10.48550/arxiv.2104.07601