| DOI | Trouver le DOI : https://doi.org/10.1109/CPEM.2012.6250904 |
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| Auteur | Rechercher : Madej, A. A.1; Rechercher : Dubé, P.1; Rechercher : Zhou, Z.1; Rechercher : Bernard, J. 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 | 2012 Conference on Precision Electromagnetic Measurements (CPEM 2012), July 1-6, 2012, Washington, DC, USA |
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| Sujet | Clocks; frequency control; ions; lasers; precision mesurements; spectroscopy; start effect; strontium |
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| Résumé | We describe receent progress in the establishment of a versatile and reliable optical frequency standard whose performance in evaluated accuracy and stability exceeds that of the current realization of the SI second. The 445-THz reference transition in a single, trapped, and laser cooled ion of 88Sr⁺ suspended using a miniature RF endcap trap system in the new trap have been reduced to the 2 x 10⁻¹⁷ level for each of the scalar Stak shifts and the time dilation shifts. Studies indicate that such shifts remain stable over several hours. An identical trap system was constructed to evaluate the electrode heating effects of the shift will be limited by the current knowledge of the scalar polarizabilities of the upper and lower states of the reference transition, currently at the 2 x 10⁻¹⁷ level. |
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| Date de publication | 2012-07-06 |
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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 | 21270478 |
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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 | b3acf826-ade8-4b35-bba7-45661713048b |
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| Enregistrement créé | 2014-02-13 |
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| Enregistrement modifié | 2020-04-21 |
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