Stability enhancement by joint phase measurements in a single cold atomic fountain
Open accessAbstract
We propose a method of joint interrogation in a single atom interferometer which overcomes the dead time between consecutive measurements in standard cold atomic fountains. The joint operation enables for a faster averaging of the Dick effect associated with the local oscillator noise in clocks and with vibration noise in cold atom inertial sensors. Such an operation allows one to achieve the lowest stability limit due to atom shot noise. We demonstrate a multiple joint operation in which up to five clouds of atoms are interrogated simultaneously in a single setup. The essential feature of multiple joint operation, demonstrated here for a microwave Ramsey interrogation, can be generalized to go beyond the current stability limit associated with dead times in present-day cold atom interferometer inertial sensors.
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The effect of aliased noise in the two systems has the same magnitude but opposite sign.
“the effect of the aliased noise in the two systems has the same magnitude but opposite sign 37 .”
From Ultrastable optical clock with two cold-atom ensembles (2017) · cites this paper as [37]
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References 22 · Cited by 40
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- Authors
- Meunier, M., Dutta, I., Geiger, R., Guerlin, C., Garrido Alzar, C. L., & Landragin, A.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2014-12-22
- Volume
- 90
- Issue
- 6
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2043270286
- Cited by
- 40
- References
- 22
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 1 · 2022: 4 · 2021: 1 · 2020: 2 · 2019: 3 · 2018: 5 · 2017: 4 · 2016: 13 · 2015: 2 · 2014: 2
- FWCI
- 3.48
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review A (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion)
- arXiv (Cornell University)
- Funders
- Division of Grants and Agreements
- Centre National d’Etudes Spatiales
- Labex
- Agence Nationale de la Recherche (ANR-10-LABX-48-01)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Frequency and Time Standards
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Atomic and Subatomic Physics Research
- Keywords
- atom interferometry, dead time, Dick effect, local oscillator noise, vibration noise, shot noise, inertial sensors, clock stability
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