Archivio Istituzionale della RicercaWe report the absolute frequency measurement of the unperturbed transition 1S0 –3P0 at 578 nm in 171Yb realized in an optical lattice frequency standard relative to a cryogenic caesium fountain. The measurement result is 518 295 836 590 863.59(31) Hz with a relative standard uncertainty of 5.9×10−16. This value is in agreement with the ytterbium frequency recommended as a secondary representation of the second in the International System of Units.
Absolute frequency measurement of the $^1 extS_0$ – $^3 extP_0$ transition of 171Yb / Pizzocaro, Marco; Thoumany, Pierre; Rauf, Benjamin; Bregolin, Filippo; Milani, Gianmaria; Clivati, Cecilia; Costanzo, Giovanni Antonio; Levi, Filippo; Calonico, Davide. - In: METROLOGIA. - ISSN 0026-1394. - STAMPA. - 54:1(2017), pp. 102-112. [10.1088/1681-7575/aa4e62]
Absolute frequency measurement of the $^1 extS_0$ – $^3 extP_0$ transition of 171Yb
RAUF, BENJAMIN;BREGOLIN, FILIPPO;MILANI, GIANMARIA;COSTANZO, Giovanni Antonio;
2017
Abstract
We report the absolute frequency measurement of the unperturbed transition 1S0 –3P0 at 578 nm in 171Yb realized in an optical lattice frequency standard relative to a cryogenic caesium fountain. The measurement result is 518 295 836 590 863.59(31) Hz with a relative standard uncertainty of 5.9×10−16. This value is in agreement with the ytterbium frequency recommended as a secondary representation of the second in the International System of Units.
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METaa4e62rev1p11.pdf
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Costanzo-Absolute.pdf
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https://hdl.handle.net/11583/2663689
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