58 citations · 224 across the 22 of their papers we have counts for
21 papers · 1 filter
Deterministic engineering of topological defects in two-dimensional single-species ion Coulomb crystals
Luca-Amadeus Rüffert, Hemanth Kalathur, Tanja E. Mehlstäubler
We propose and numerically demonstrate a deterministic protocol for preparing and tailoring topological defects in two-dimensional single-species Coulomb crystals confined in radio…
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…
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 …
Nuclear spin quenching of the electric octupole transition in Yb
Jialiang Yu, Anand Prakash, Clara Zyskind +4
We report the coherent excitation of the highly forbidden clock transition in the odd isotope with nuclear spin ,…
Shell formation and two-dimensional nanofriction in three-dimensional ion Coulomb crystals
L. -A. Rüffert, T. E. Mehlstäubler
Self-organized three-dimensional (3D) ion Coulomb crystals in linear Paul traps naturally form concentric shells that provide a curved, atomically resolved interface for studying t…
Coordinated international comparisons between optical clocks connected via fiber and satellite links
Thomas Lindvall, Marco Pizzocaro, Rachel M. Godun +62
Optical clocks provide ultra-precise frequency references that are vital for international metrology as well as for tests of fundamental physics. To investigate the level of agreem…