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Proceedings Paper

Decoherence and dynamics in continuous 3D-cooled atom interferometry
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Paper Abstract

We study decoherence in continuously cooled atom interferometers by performing Raman-Ramsey fringe measurements in a continuous beam of 3D-sub-Doppler-cooled rubidium atoms. The atom beam is produced by a two-stage cold atom source that is designed to mitigate the decoherence of atomic interference caused by cooling induced fluorescence. The atom beam source produces a collimated beam of over 109 atoms/s that is cooled by polarization gradient cooling to temperatures as low as 14 µK. We infer the potential performance of this atom beam source in a cold-atom gyroscope and use numerical models of motion in 6 degrees of freedom to study the expected performance on dynamic platforms.

Paper Details

Date Published: 25 February 2020
PDF: 10 pages
Proc. SPIE 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, 1129607 (25 February 2020);
Show Author Affiliations
Adam T. Black, U.S. Naval Research Lab. (United States)
Jonathan M. Kwolek, U.S. Naval Research Lab. (United States)
Charles T. Fancher, U.S. Naval Research Lab. (United States)
MITRE Corp. (United States)
Mark Bashkansky, U.S. Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 11296:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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