Absolute frequency measurement of the 2 S 1/2 → 2 F 7/2 optical clock transition in 171 Yb+ with an uncertainty of 4 x 10 -16 using a frequency link to international atomic time

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dc.contributor.authorBaynham, C.
dc.contributor.authorGodun, R.
dc.contributor.authorJones, J.
dc.contributor.authorKing, S.
dc.contributor.authorNisbet-Jones, P.
dc.contributor.authorBaynes, F.
dc.contributor.authorRolland, A.
dc.contributor.authorBaird, P.
dc.contributor.authorBongs, K.
dc.contributor.authorGill, P.
dc.contributor.authorMargolis, H.
dc.date.issued2018
dc.description.abstractThe highly forbidden 2S1/2→2F7/2 electric octupole transition in 171Yb+ is a potential candidate for a redefinition of the SI second. We present a measurement of the absolute frequency of this optical transition, performed using a frequency link to International Atomic Time to provide traceability to the SI second. The 171Yb+ optical frequency standard was operated for 76% of a 25-day period, with the absolute frequency measured to be 642 121 496 772 645.14(26) Hz. The fractional uncertainty of 4.0×10−16 is comparable to that of the best previously reported measurement, which was made by a direct comparison to local caesium primary frequency standards.
dc.description.statementofresponsibilityCharles F. A. Baynham, Rachel M. Godun, Jonathan M. Jones, Steven A. King, Peter B. R. Nisbet-Jones, Fred Baynes ... et al.
dc.identifier.citationJournal of Modern Optics, 2018; 65(5-6):585-591
dc.identifier.doi10.1080/09500340.2017.1384514
dc.identifier.issn0950-0340
dc.identifier.issn1362-3044
dc.identifier.urihttp://hdl.handle.net/2440/129018
dc.language.isoen
dc.publisherTaylor & Francis
dc.rights© 2017 Informa UK Limited, trading as Taylor & Francis Group
dc.source.urihttps://doi.org/10.1080/09500340.2017.1384514
dc.subjectFrequency metrology; optical frequency standards; international atomic time
dc.titleAbsolute frequency measurement of the 2 S 1/2 → 2 F 7/2 optical clock transition in 171 Yb+ with an uncertainty of 4 x 10 -16 using a frequency link to international atomic time
dc.title.alternativeAbsolute frequency measurement of the (2 S 1/2 → 2 F 7/2) optical clock transition in (171 Yb+) with an uncertainty of (4 x 10 -16) using a frequency link to international atomic time
dc.typeJournal article
pubs.publication-statusPublished

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