245 citations · 964 across the 12 of their papers we have counts for
12 papers
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…
Searching for an oscillating massive scalar field as a dark matter candidate using atomic hyperfine frequency comparisons
A. Hees, J. Guéna, M. Abgrall +2
We use six years of accurate hyperfine frequency comparison data of the dual rubidium and caesium cold atom fountain FO2 at LNE-SYRTE to search for a massive scalar dark matter can…
Experimenting an optical second with strontium lattice clocks
R. Le Targat, L. Lorini, Y. Le Coq +17
Progress in realizing the SI second had multiple technological impacts and enabled to further constraint theoretical models in fundamental physics. Caesium microwave fountains, rea…
A neutral atom frequency reference in the deep UV with 10^(-15) range uncertainty
J. J. McFerran, L. Yi, S. Mejri +5
We present an assessment of the (6s^{2})1S0 -> (6s7s)3P0 clock transition frequency in 199Hg with an uncertainty reduction of nearly three orders of magnitude and demonstrate an at…
Evaluation of Doppler Shifts to Improve the Accuracy of Primary Atomic Fountain Clocks
Jocelyne Guéna, Ruoxin Li, Kurt Gibble +2
We demonstrate agreement between measurements and ab initio calculations of the frequency shifts caused by distributed cavity phase variations in the microwave cavity of a primary…
Ultra-low noise microwave generation with fiber-based optical frequency comb and application to atomic fountain clock
J. Millo, M. Abgrall, M. Lours +8
We demonstrate the use of a fiber-based femtosecond laser locked onto an ultra-stable optical cavity to generate a low-noise microwave reference signal. Comparison with both a liqu…