Frequency evaluation of the doubly forbidden 1S0–3P0 transition in bosonic 174Yb

Published

May 6, 2008

Author(s)

Nicola Poli, Zeb Barber, Nathan D. Lemke, Christopher W. Oates, Tara Fortier, Scott Diddams, Leo W. Hollberg, James C. Bergquist, Anders Brusch, Steven R. Jefferts, Thomas P. Heavner, Tom Parker

Abstract

We report an uncertainty evaluation of an optical lattice clock based on the ¹S₀ –³P₀ transition in the bosonic isotope ¹⁷⁴Yb using magnetically induced spectroscopy. The uncertainty due to systematic effects has been reduced to less than 0.8Hz, which represents 1.5 x 10^-15 in fractional frequency. The absolute value of the ¹S₀ – ³P₀ transition has also been determined through comparisons with optical and microwave standards at NIST. The weighted mean of the evaluations is Ņ(¹⁷⁴Yb) = 518 294 025 309 217.8(0.9)Hz. This represents the first step toward the realization of an accurate optical lattice clock based on even isotopes of Yb.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

77

Issue

050501

Pub Type

Journals

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Keywords

atomic clocks, optical frequency standards, optical lattices, ytterbium

Citation

Poli, N. , Barber, Z. , Lemke, N. , Oates, C. , Fortier, T. , Diddams, S. , Hollberg, L. , Bergquist, J. , Brusch, A. , Jefferts, S. , Heavner, T. and Parker, T. (2008), Frequency evaluation of the doubly forbidden ¹S₀–³P₀ transition in bosonic ¹⁷⁴Yb, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=842451 (Accessed October 23, 2025)