3 papers
quant-ph2026
On the potential for high-accuracy spectroscopy of and in Penning traps for a test of CPT invariance
Stephan Schiller, Juan M. Cornejo, Nikita Poljakov +3
The comparison of vibrational transition frequencies of and offers a new opportunity to test CPT invariance. Myers [Phys. Rev. A 98, 01…
physics.atom-ph2026
High-precision Penning-trap spectroscopy of the ground-state spin structure of HD+
Charlotte M. König, Matthew Bohman, Fabian Heiße +10
We present high-precision spectroscopy of the ground-state hyperfine structure of HD at 4~T. We determine the bound-electron factor, $g_{e,\mathrm{bound}} = -2.002\,278\,54…
physics.ins-det2025
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…