49 citations · 103 across the 9 of their papers we have counts for
9 papers
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…
Quadratic Zeeman and Electric Quadrupole Shifts in Highly Charged Ions
Jan Gilles, Stephan Fritzsche, Lukas J. Spieß +2
Recent advances in high-precision spectroscopy of highly charged ions necessitate an understanding of energy shifts of ionic levels caused by external electric and magnetic fields.…
Quantum logic control of a transition metal ion
Till Rehmert, Maximilian J. Zawierucha, Kai Dietze +2
Extending quantum control to increasingly complex systems is crucial for both advancing quantum technologies and fundamental physics. In trapped ion systems, quantum logic techniqu…
GHZ protocols enhance frequency metrology despite spontaneous decay
Timm Kielinski, Piet O. Schmidt, Klemens Hammerer
The use of correlated states and measurements promises improvements in the accuracy of frequency metrology and the stability of atomic clocks. However, developing strategies robust…
Deterministic preparation of a dual-species two-ion crystal
Maximilian J. Zawierucha, Till Rehmert, Jonas Keller +3
The demand for efficient preparation methods for dual-species ion crystals is rapidly expanding across quantum technology and fundamental physics applications with trapped ions. We…
Multi-ion frequency reference using dynamical decoupling
Lennart Pelzer, Kai Dietze, Víctor J. Martínez-Lahuerta +6
We present the experimental realization of a continuous dynamical decoupling scheme which suppresses leading frequency shifts in a multi-ion frequency reference based on $^{40}\mat…
Quadrupole transitions and quantum gates protected by continuous dynamic decoupling
V. J. Martínez-Lahuerta, L. Pelzer, K. Dietze +3
Dynamical decoupling techniques are a versatile tool for engineering quantum states with tailored properties. In trapped ions, nested layers of continuous dynamical decoupling by m…
Non-linear isotope-shift effects in Be-like, B-like, and C-like argon
V. A. Yerokhin, R. A. Müller, A. Surzhykov +2
Violation of linearity of the King plot is investigated for a chain of partially stripped argon isotopes. The nonlinearity originates within the Standard Model from subtle contribu…
A highly stable monolithic enhancement cavity for SHG generation in the UV
S. Hannig, J. Mielke, J. A. Fenske +4
We present a highly stable bow-tie power enhancement cavity for critical second-harmonic generation into the UV using a Brewster-cut -BaBO (BBO) nonlinear crystal. The c…