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arXiv · 1512.02156

Absolute measurement of the ${}^{1}S_{0}$ - ${}^{3}P_{0}$ clock transition in neutral ${}^{88}$Sr over the 330 km-long stabilized fibre optic link

Piotr Morzynski·Marcin Bober·Dobroslawa Bartoszek-Bober·Jerzy Nawrocki·Przemyslaw Krehlik·Lukasz Sliwczynski·Marcin Lipinski·Piotr Maslowski·Agata Cygan·Piotr Dunst·Michal Garus·Daniel Lisak·Jerzy Zachorowski·Wojciech Gawlik·Czeslaw Radzewicz·Roman Ciurylo·Michal Zawada
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Abstract

We report a stability below $7\times 10{}^{-17}$ of two independent optical lattice clocks operating with bosonic ${}^{88}$Sr isotope. The value (429228066418008.3(1.9)${}_{syst}$(0.9)${}_{stat}$~Hz) of the absolute frequency of the ${}^{1}S_{0}$ - ${}^{3}P_{0}$ transition was measured with an optical frequency comb referenced to the local representation of the UTC by the 330 km-long stabilized fibre optical link. The result was verified by series of measurements on two independent optical lattice clocks and agrees with recommendation of Bureau International des Poids et Mesures.

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Piotr Morzynski, Marcin Bober, Dobroslawa Bartoszek-Bober, Jerzy Nawrocki, Przemyslaw Krehlik, Lukasz Sliwczynski, Marcin Lipinski, Piotr Maslowski, Agata Cygan, Piotr Dunst, Michal Garus, Daniel Lisak, Jerzy Zachorowski, Wojciech Gawlik, Czeslaw Radzewicz, Roman Ciurylo, Michal Zawada. 2015-12-07. Absolute measurement of the ${}^{1}S_{0}$ - ${}^{3}P_{0}$ clock transition in neutral ${}^{88}$Sr over the 330 km-long stabilized fibre optic link. https://doi.org/10.1038/srep17495

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