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Abstract
A compact platform for cold atoms opens a range of exciting possibilities for portable, robust, and accessible quantum sensors. In this work we report on the development of a cold-atom microwave clock in a small package. Our work utilises the grating magneto-optical trap and high-contrast coherent population trapping in the lin⊥lin polarisation scheme. We optically probe the atomic round-state splitting of cold 87Rb atoms using a Ramsey-like sequence whilst the atoms are in free-fall. We have measured a
short-term fractional frequency stability of 5×10−11/√t with a projected quantum projection noise limit at the 10 −13/√t level.
short-term fractional frequency stability of 5×10−11/√t with a projected quantum projection noise limit at the 10 −13/√t level.
Original language | English |
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Pages (from-to) | 297-303 |
Number of pages | 7 |
Journal | Advanced Optical Technologies |
Volume | 9 |
Issue number | 5 |
Early online date | 7 Sep 2019 |
DOIs | |
Publication status | Published - 31 Oct 2020 |
Keywords
- CPT
- atomic clock
- coherent population trapping
- cold atoms
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Dive into the research topics of 'Towards a compact, optically-interrogated, cold-atom microwave clock'. Together they form a unique fingerprint.Projects
- 1 Finished
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UK Quantum Technology Hub for Sensors and Metrology
Hastie, J., Arnold, A., Griffin, P., Kemp, A. & Riis, E.
EPSRC (Engineering and Physical Sciences Research Council)
1/12/14 → 30/11/19
Project: Research
Datasets
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Data for: "Towards a compact, optically-interrogated, cold-atom microwave clock"
Elvin, R. (Creator), Wright, M. (Contributor), Hoth, G. (Contributor), Lewis, B. (Contributor), Bregazzi, A. (Contributor), Keliehor, B. (Contributor), Arnold, A. (Contributor), Griffin, P. (Contributor) & Riis, E. (Contributor), University of Strathclyde, 17 Sep 2020
DOI: 10.15129/4e8355df-93df-4157-a0cb-44953ff3dd20
Dataset