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arXiv · 1609.01610

Absolute frequency measurement of the 1S0 - 3P0 transition of 171Yb

Marco Pizzocaro·Pierre Thoumany·Benjamin Rauf·Filippo Bregolin·Gianmaria Milani·Cecilia Clivati·Giovanni A. Costanzo·Filippo Levi·Davide Calonico
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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. The absolute frequency is measured 518 295 836 590 863.55(28) Hz relative to a cryogenic caesium fountain with a fractional uncertainty of 5.4x10-16 . 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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Marco Pizzocaro, Pierre Thoumany, Benjamin Rauf, Filippo Bregolin, Gianmaria Milani, Cecilia Clivati, Giovanni A. Costanzo, Filippo Levi, Davide Calonico. 2017-01-20. Absolute frequency measurement of the 1S0 - 3P0 transition of 171Yb. https://doi.org/10.1088/1681-7575%2Faa4e62

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