| DOI | Trouver le DOI : https://doi.org/10.1109/EFTF-IFC.2013.6702065 |
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| Auteur | Rechercher : Dube, Pierre1; Rechercher : Madej, Alan A.1; Rechercher : Tibbo, Maria1; Rechercher : Bernard, John E.1 |
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| Affiliation | - Conseil national de recherches du Canada. Science des mesures et étalons
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| Format | Texte, Article |
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| Conférence | 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), July 21-25 2013, Prague, Czech Republic |
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| Sujet | Blackbody radiation; Frequency standards; Measurment uncertainty; Microwave measurement; Strontium; Trapped ions |
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| Résumé | An overview of the key methods used to reduce the uncertainty of the systematic shifts of the strontium ion optical frequency standard is presented. An uncertainty of 10 mHz at a clock frequency of 445 THz is obtained, limited by the uncertainty of the blackbody radiation shift. The uncertainty estimates of other shifts such as micromotion and electric quadrupole shifts are on the order of 1 mHz or less. The effectiveness of the methods used to reduce or cancel the shifts is illustrated with experiments comparing two ion traps. One has strong micromotion levels while the other, the reference trap, provides good control over the shifts. Despite nominal shifts of 70 Hz in the trap with large micromotion levels, the agreement with the reference trap is at the sub-Hz level. |
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| Date de publication | 2013-07 |
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| Maison d’édition | IEEE |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23000493 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 8c57d872-ca7d-4fc9-b410-14927f5cf574 |
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| Enregistrement créé | 2016-07-26 |
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| Enregistrement modifié | 2020-04-22 |
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