Parallel processing in Precision Metrology: decouplng coherence time from repetition rate in trapped-particle spectroscopy
ORAL · Invited
Abstract
In our experiment to measure the electron's electric dipole moment (eEDM), we are able to observe coherent Ramsey fringe on a molecular transition, sensitive to the value of eEDM, with Ramsey times out past 17 seconds. The effective linewidth is on the transition is thus exquisitely narrow. For a single sample of trapped ions the repetition rate goes inversely as the Ramsey time, with a corresponding loss in the signal-to-noise obtainable in an hour of data collection. We report on steps we've taken to parallelize the process and thus recapture the lost signal-to-noise ratio.
*This work was supported by the Gordon and Betty Moore Foundation, grant DOI 10.37807/GBMF13862, by the Alfred P. Sloan Foundation under Grant No. APSF 2025-79211, by AFOSR (FA9550-20-1-0323), by NSF PFC (PHY-2317149), by the National Institute of Standards and Technology, and by a Marsico Chair of Excellence.
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Publication: Sun Yool Park, Michail Athanasakis-Kaklamanakis, Patricia Hector Hernandez, Rohan Kompella, Kiaboon Ng, Tuan Anh Nguyen, Anzhou Wang, Jun Ye and Eric Cornell, in preparation.
Presenters
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Eric A. Cornell
- National Institute of Standards and Technology Boulder
- JILA/NIST