77 citations · 252 across the 11 of their papers we have counts for
7 papers · 1 filter
Extreme-ultraviolet spectroscopy using quantum logic: a feasibility study for the 1S-2S transition in singly-ionized helium
A. Martínez de Velasco, V. P. J. Barbé, E. L. Gründeman +11
Extreme-ultraviolet (XUV) spectroscopy represents an important new direction in precision physics, with potential applications ranging from the metrology of fundamental constants t…
Demonstration of Ramsey-Comb Precision Spectroscopy in Xenon at Vacuum Ultraviolet Wavelengths Produced with High-Harmonic Generation
L. S. Dreissen, C. Roth, E. L. Gründeman +3
The remarkable progress in the field of laser spectroscopy induced by the invention of the frequency-comb laser has enabled many new high-precision tests of fundamental theory and…
Long-lived circular Rydberg states of laser-cooled Rubidium atoms in a cryostat
Tigrane Cantat-Moltrecht, Rodrigo Cortiñas, Brice Ravon +6
The exquisite properties of Rydberg levels make them particularly appealing for emerging quantum technologies. The lifetime of low-angular-momentum laser-accessible levels is howev…
High-Precision Ramsey-Comb Spectroscopy Based on High-Harmonic Generation
L. S. Dreissen, C. Roth, E. L. Gründeman +3
High-harmonic generation (HHG) is widely used for up-conversion of amplified (near) infrared ultrafast laser pulses to short wavelengths. We demonstrate that Ramsey-comb spectrosco…
Laser Trapping of Circular Rydberg Atoms
R. G. Cortiñas, M. Favier, B. Ravon +5
Rydberg atoms are remarkable tools for quantum simulation and computation. They are the focus of an intense experimental activity mainly based on low-angular-momentum Rydberg state…
Paving the way for fundamental physics tests with singly-ionized helium
J. J. Krauth, L. S. Dreissen, C. Roth +4
High-precision laser spectroscopy of atomic hydrogen has led to an impressive accuracy in tests of bound-state quantum electrodynamics (QED). At the current level of accuracy many…
Comparing a mercury optical lattice clock with microwave and optical frequency standards
R Tyumenev, M Favier, S Bilicki +9
In this paper we report the evaluation of an optical lattice clock based on neutral mercury down to a relative uncertainty of . Comparing this characterized fre…