A cold-atom Ramsey clock with a low volume physics package
Abstract We demonstrate a Ramsey-type microwave clock interrogating the 6.835 GHz ground-state transition in cold $$^{87}$$ 87 Rb atoms loaded from a grating magneto-optical trap (GMOT) enclosed in an additively manufactured loop-gap resonator microwave cavity. A short-term stability of $$1.5 \times...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-51418-8 |
| _version_ | 1797355748151263232 |
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| author | A. Bregazzi E. Batori B. Lewis C. Affolderbach G. Mileti E. Riis P. F. Griffin |
| author_facet | A. Bregazzi E. Batori B. Lewis C. Affolderbach G. Mileti E. Riis P. F. Griffin |
| author_sort | A. Bregazzi |
| collection | DOAJ |
| description | Abstract We demonstrate a Ramsey-type microwave clock interrogating the 6.835 GHz ground-state transition in cold $$^{87}$$ 87 Rb atoms loaded from a grating magneto-optical trap (GMOT) enclosed in an additively manufactured loop-gap resonator microwave cavity. A short-term stability of $$1.5 \times 10^{-11} \tau ^{-1/2}$$ 1.5 × 10 - 11 τ - 1 / 2 is demonstrated, in reasonable agreement with predictions from the signal-to-noise ratio of the measured Ramsey fringes. The cavity-grating package has a volume of $$\approx $$ ≈ 67 cm $$^{3}$$ 3 , ensuring an inherently compact system while the use of a GMOT drastically simplifies the optical requirements for laser cooled atoms. This work is another step towards the realisation of highly compact portable cold-atom frequency standards. |
| first_indexed | 2024-03-08T14:16:28Z |
| format | Article |
| id | doaj.art-c38f97f25844429da85ac44000a8219e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T14:16:28Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-c38f97f25844429da85ac44000a8219e2024-01-14T12:23:56ZengNature PortfolioScientific Reports2045-23222024-01-011411710.1038/s41598-024-51418-8A cold-atom Ramsey clock with a low volume physics packageA. Bregazzi0E. Batori1B. Lewis2C. Affolderbach3G. Mileti4E. Riis5P. F. Griffin6SUPA and Department of Physics, University of StrathclydeInstitute of Physics, Laboratoire Temps-Fréquence, University of NeuchâtelSUPA and Department of Physics, University of StrathclydeInstitute of Physics, Laboratoire Temps-Fréquence, University of NeuchâtelInstitute of Physics, Laboratoire Temps-Fréquence, University of NeuchâtelSUPA and Department of Physics, University of StrathclydeSUPA and Department of Physics, University of StrathclydeAbstract We demonstrate a Ramsey-type microwave clock interrogating the 6.835 GHz ground-state transition in cold $$^{87}$$ 87 Rb atoms loaded from a grating magneto-optical trap (GMOT) enclosed in an additively manufactured loop-gap resonator microwave cavity. A short-term stability of $$1.5 \times 10^{-11} \tau ^{-1/2}$$ 1.5 × 10 - 11 τ - 1 / 2 is demonstrated, in reasonable agreement with predictions from the signal-to-noise ratio of the measured Ramsey fringes. The cavity-grating package has a volume of $$\approx $$ ≈ 67 cm $$^{3}$$ 3 , ensuring an inherently compact system while the use of a GMOT drastically simplifies the optical requirements for laser cooled atoms. This work is another step towards the realisation of highly compact portable cold-atom frequency standards.https://doi.org/10.1038/s41598-024-51418-8 |
| spellingShingle | A. Bregazzi E. Batori B. Lewis C. Affolderbach G. Mileti E. Riis P. F. Griffin A cold-atom Ramsey clock with a low volume physics package Scientific Reports |
| title | A cold-atom Ramsey clock with a low volume physics package |
| title_full | A cold-atom Ramsey clock with a low volume physics package |
| title_fullStr | A cold-atom Ramsey clock with a low volume physics package |
| title_full_unstemmed | A cold-atom Ramsey clock with a low volume physics package |
| title_short | A cold-atom Ramsey clock with a low volume physics package |
| title_sort | cold atom ramsey clock with a low volume physics package |
| url | https://doi.org/10.1038/s41598-024-51418-8 |
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