204 citations · 408 across the 6 of their papers we have counts for
6 papers
An Al clock with systematic uncertainty and its frequency ratios
Fabian Dawel, Johannes Kramer, Derwell Drapier +15
Advances in optical clocks motivate a redefinition of the second, requiring rigorous evaluations of systematic uncertainties and robust consistency among the clocks. Here, we repor…
Transportable strontium lattice clock with blackbody radiation shift uncertainty
I. Nosske, C. Vishwakarma, T. Lücke +6
We describe a transportable optical lattice clock based on the transition of lattice-trapped Sr atoms with a total systematic u…
Continuous optical generation of microwave signals for fountain clocks
Burghard Lipphardt, Patrick Walkemeyer, Michael Kazda +2
For the optical generation of ultrastable microwave signals for fountain clocks we developed a setup, which is based on a cavity stabilized laser and a commercial frequency comb. T…
Improved limits for violations of local position invariance from atomic clock comparisons
R. Lange, N. Huntemann, J. M. Rahm +6
We compare two optical clocks based on the SD electric quadrupole (E2) and the SF electric octupole (E3)…
Long term measurement of the Sr clock frequency at the limit of primary Cs clocks
R. Schwarz, S. Dörscher, A. Al-Masoudi +7
We report on a series of 42 measurements of the transition frequency of the 429~THz (5s)~S--(5s5p)~P line in Sr taken over three years from 2017 to 2019.…
Advances in the accuracy, stability, and reliability of the PTB primary fountain clocks
S. Weyers, V. Gerginov, M. Kazda +4
Improvements of the systematic uncertainty, frequency instability, and long-term reliability of the two caesium fountain primary frequency standards CSF1 and CSF2 at PTB (Physikali…