763 citations · 2.5k across the 24 of their papers we have counts for
13 papers · 1 filter
Demonstration of a time scale based on a stable optical carrier
William R. Milner, John M. Robinson, Colin J. Kennedy +13
We demonstrate a time scale based on a phase stable optical carrier that accumulates an estimated time error of ps over 34 days of operation. This all-optical time scale…
Optical clock intercomparison with precision in one hour
E. Oelker, R. B. Hutson, C. J. Kennedy +14
Improvements in atom-light coherence are foundational to progress in quantum information science, quantum optics, and precision metrology. Optical atomic clocks require local oscil…
Ground-state properties of Ca from narrow line two-color photoassociation
Evgenij Pachomow, Veit Peter Dahlke, Eberhard Tiemann +2
By two-color photoassociation of Ca four weakly bound vibrational levels in the Ca \Xpot ground state potential were measured, using highly spin-forbidden transitions to…
Nonlinear Zeeman effect in photoassociation spectra of Ca near the P+S asymptote
Eberhard Tiemann, Max Kahmann, Evgenij Pachomow +2
We present calculations of the Zeeman effect of narrow photoassociation lines of Ca near the P + S asymptote. Using a coupled-channel model we find a nonline…
Towards a Re-definition of the Second Based on Optical Atomic Clocks
Fritz Riehle
The rapid increase in accuracy and stability of optical atomic clocks compared to the caesium atomic clock as primary standard of time and frequency asks for a future re-definition…
High accuracy photoassociation of Ca near the asymptote and its Zeeman effect
Max Kahmann, Eberhard Tiemann, Oliver Appel +2
We report on the first measurement of narrow photoassociation lines of Ca near the asymptote related to the molecular states and . The hig…