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20082020
most citedFrequency ratio of two optical clock transitions in Yb and constraints on the time-variation of fundamental constants

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physics.ins-det2019★ 39 cited

Direct comparisons of European primary and secondary frequency standards via satellite techniques

F. Riedel, A. Al-Masoudi, E. Benkler +46

We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-bas…