675 citations · 4k across the 54 of their papers we have counts for
55 papers
metastable state of for a hyperfine-free nuclear clock
S. Sagar Maurya, V. Lal, J. Tiedau +2
We present measurements on a metastable state in with the electronic configuration . This is motivated by the prospect o…
Continuous-wave laser absorption spectroscopy of the Thorium-229 nucleus
I. Morawetz, T. Riebner, L. Toscani De Col +17
A low-energy nuclear transition in the isotope thorium-229 has been excited in thorium-doped crystals with laser light. This opens the perspective towards a highly stable and robus…
A multi-ion optical clock with uncertainty
Melina Filzinger, Martin R. Steinel, Jian Jiang +4
Today's most accurate clocks are based on laser spectroscopy of electronic transitions in single trapped ions and feature fractional frequency uncertainties below …
Continuous-wave laser source at the 148 nm nuclear transition of Th-229
Vishal Lal, Maksim V. Okhapkin, Johannes Tiedau +3
A continuous-wave laser source at 148.4 nm based on second-harmonic generation in randomly quasi-phase matched strontium tetraborate, SrB4O7, is demonstrated. It provides (1.3-0.6+…
The QTF-Backbone: Proposal for a Nationwide Optical Fibre Backbone in Germany for Quantum Technology and Time and Frequency Metrology
Tara Cubel Liebisch, Peter Kaufmann, Harald Schnatz +166
The recent breakthroughs in the distribution of quantum information and high-precision time and frequency (T&F) signals over long-haul optical fibre networks have transformative po…
Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled Th ions
G. Zitzer, J. Tiedau, Ch. E. Düllmann +2
The hyperfine structure of Th ions in the nuclear ground state is investigated via laser spectroscopy of trapped Th ions that are sympathetically cooled by la…