70 citations · 180 across the 7 of their papers we have counts for
7 papers
Coordinated international comparisons between optical clocks connected via fiber and satellite links
Thomas Lindvall, Marco Pizzocaro, Rachel M. Godun +62
Optical clocks provide ultra-precise frequency references that are vital for international metrology as well as for tests of fundamental physics. To investigate the level of agreem…
High-accuracy multi-ion spectroscopy with mixed-species Coulomb crystals
J. Keller, H. N. Hausser, I. M. Richter +14
Multi-ion optical clocks offer the possibility of overcoming the low signal-to-noise ratio of single-ion clocks, while still providing low systematic uncertainties. We present simu…
In-Yb Coulomb crystal clock with systematic uncertainty
H. N. Hausser, J. Keller, T. Nordmann +17
We present a scalable mixed-species Coulomb crystal clock based on the transition in In. Yb ions are co-trapped and used f…
Bichromatic UV detection system for atomically-resolved imaging of ions
T. Nordmann, S. Wickenhagen, M. Doležal +1
We present a compact and bichromatic imaging system, located outside of the vacuum chamber of a trapped ion apparatus, that collects the fluorescence of 230.6 nm and 369.5 nm photo…
Sub-kelvin temperature management in ion traps for optical clocks
T. Nordmann, A. Didier, M. Doležal +3
The uncertainty of the ac Stark shift due to thermal radiation represents a major contribution to the systematic uncertainty budget of state-of-the-art optical atomic clocks. In th…
Controlling systematic frequency uncertainties at the level in linear Coulomb crystals
J. Keller, T. Burgermeister, D. Kalincev +5
Trapped ions are ideally suited for precision spectroscopy, as is evident from the remarkably low systematic uncertainties of single-ion clocks. The major weakness of these clocks…
Probing Time Dilation in Coulomb Crystals in a high-precision Ion Trap
J. Keller, D. Kalincev, T. Burgermeister +5
Trapped-ion optical clocks are capable of achieving systematic fractional frequency uncertainties of and possibly below. However, the stability of current ion clocks is…