We present the absolute frequency measurement of the transition 1S0 - 3P0 at 578 nm in ytterbium 171 realized in an optical lattice frequency standard relative to the cryogenic caesium fountain ITCsF2. The measurement result is 518 295 836 590 863.59(31) Hz with a relative standard uncertainty of 5.9 × 10-16. A contribution of 1.6 × 10-16 is coming from the ytterbium clock and we are working to reduce this contribution to the 1 × 10-17 level.

Absolute frequency measurement of the 171Yb optical lattice clock at INRIM / Pizzocaro, Marco; Thoumany, Pierre; Bregolin, Filippo; Milani, Gianmaria; Rauf, Benjamin; Lopez, Maria del Carmen Velez; Clivati, Cecilia; Costanzo, Giovanni A.; Levi, Filippo; Calonico, Davide. - (2017), pp. 813-814. ((Intervento presentato al convegno 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) tenutosi a Besancon (FRA) nel 9-13 luglio 2017 [10.1109/FCS.2017.8089043].

Absolute frequency measurement of the 171Yb optical lattice clock at INRIM

Pizzocaro, Marco;Thoumany, Pierre;Bregolin, Filippo;Milani, Gianmaria;Rauf, Benjamin;Clivati, Cecilia;Costanzo, Giovanni A.;Levi, Filippo;Calonico, Davide
2017

Abstract

We present the absolute frequency measurement of the transition 1S0 - 3P0 at 578 nm in ytterbium 171 realized in an optical lattice frequency standard relative to the cryogenic caesium fountain ITCsF2. The measurement result is 518 295 836 590 863.59(31) Hz with a relative standard uncertainty of 5.9 × 10-16. A contribution of 1.6 × 10-16 is coming from the ytterbium clock and we are working to reduce this contribution to the 1 × 10-17 level.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2694226
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