Decoherence and dynamics in continuous 3D-cooled atom interferometry

Adam T. Black; Jonathan M. Kwolek; Charles T. Fancher; Mark Bashkansky

doi:10.1117/12.2552540

25 February 2020 Decoherence and dynamics in continuous 3D-cooled atom interferometry

Adam T. Black, Jonathan M. Kwolek, Charles T. Fancher, Mark Bashkansky

Proceedings Volume 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II; 1129607 (2020) https://doi.org/10.1117/12.2552540
Event: SPIE OPTO, 2020, San Francisco, California, United States

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.

Citation Download Citation

Adam T. Black, Jonathan M. Kwolek, Charles T. Fancher, and Mark Bashkansky "Decoherence and dynamics in continuous 3D-cooled atom interferometry", Proc. SPIE 11296, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II, 1129607 (25 February 2020); https://doi.org/10.1117/12.2552540

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