Optical to microwave clock frequency ratios with a nearly continuous strontium optical lattice clock
| Autor: | Daniele Nicolodi, E. Bookjans, Sébastien Bize, Jean-Luc Robyr, Yann Le Coq, J. Guena, S. Bilicki, Peter Rosenbusch, M. Abgrall, Rodolphe Le Targat, Gregoire Vallet, Chunyan Shi, Jérôme Lodewyck |
|---|---|
| Přispěvatelé: | Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Time delay and integration
Physics [PHYS]Physics [physics] Optical lattice Strontium business.industry Atomic Physics (physics.atom-ph) Clock rate General Engineering chemistry.chemical_element FOS: Physical sciences 01 natural sciences Metrology Physics - Atomic Physics 010309 optics Computer Science::Hardware Architecture Optics Reliability (semiconductor) chemistry 0103 physical sciences 010306 general physics business Order of magnitude Microwave ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Metrologia Metrologia, IOP Publishing, 2016, 53 (4), pp.1123-1130. ⟨10.1088/0026-1394/53/4/1123⟩ Metrologia, 2016, 53 (4), pp.1123-1130. ⟨10.1088/0026-1394/53/4/1123⟩ |
| ISSN: | 0026-1394 1681-7575 |
| Popis: | Optical lattice clocks are at the forefront of frequency metrology. Both the instability and systematic uncertainty of these clocks have been reported to be two orders of magnitude smaller than the best microwave clocks. For this reason, a redefinition of the SI second based on optical clocks seems possible in the near future. However, the operation of optical lattice clocks has not yet reached the reliability that microwave clocks have achieved so far. In this paper, we report on the operation of a strontium optical lattice clock that spans several weeks, with more than 80% uptime. We make use of this long integration time to demonstrate a reproducible measurement of frequency ratios between the strontium clock transition and microwave Cs primary and Rb secondary frequency standards. |
| Databáze: | OpenAIRE |
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