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

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

arxiv: 1609.01610 · v2 · pith:3EDTTGOEnew · submitted 2016-09-06 · ⚛️ physics.atom-ph

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

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Davide Calonico

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classification ⚛️ physics.atom-ph

keywords frequencyabsolutemeasurementtransitionagreementcaesiumcryogenicfountain

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

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