Highly charged ions: Optical clocks and applications in fundamental physics

MG Kozlov, MS Safronova… - Reviews of Modern …, 2018 - APS
Recent developments in frequency metrology and optical clocks have been based on
electronic transitions in atoms and singly charged ions as references. The control over all …

QED corrections in heavy atoms

PJ Mohr, G Plunien, G Soff - Physics Reports, 1998 - Elsevier
The comparison of theory and experiment for energy levels of strongly bound electrons
provides a critical test of quantum electrodynamics in strong fields. A theoretical evaluation …

[HTML][HTML] Heavy-ion storage rings and their use in precision experiments with highly charged ions

M Steck, YA Litvinov - Progress in Particle and Nuclear Physics, 2020 - Elsevier
Storage rings have been employed over three decades in various kinds of nuclear and
atomic physics experiments with highly charged ions. Storage ring operation and precision …

QED calculation of the and energy levels in He-like ions

AN Artemyev, VM Shabaev, VA Yerokhin… - Physical Review A …, 2005 - APS
We perform ab initio QED calculations of energy levels for the n= 1 and n= 2 states of He-like
ions with the nuclear charge in the range Z= 12–100. The complete set of two-electron QED …

Production and trap** of hydrogenlike and bare uranium ions in an electron beam ion trap

RE Marrs, SR Elliott, DA Knapp - Physical review letters, 1994 - APS
An equilibrium population of approximately 500 hydrogenlike U 9 1+ ions and ten fully
stripped U 9 2+ ions has been produced and trapped in an electron beam ion trap at 198 …

QED tests with highly charged ions

P Indelicato - Journal of Physics B: Atomic, Molecular and Optical …, 2019 - iopscience.iop.org
The current status of bound state quantum electrodynamics calculations of transition
energies for few-electron ions is reviewed. Evaluation of one and two body QED correction …

Relativistic all-order many-body calculations of the n=1 and n=2 states of heliumlike ions

DR Plante, WR Johnson, J Sapirstein - Physical Review A, 1994 - APS
An all-order procedure is used to determine the energies of the n= 1 and n= 2 states of
heliumlike ions with nuclear charges in the range Z= 3–100. The Coulomb energies and …

Atomic physics studies at the Gamma Factory at CERN

D Budker, JR Crespo López‐Urrutia… - Annalen der …, 2020 - Wiley Online Library
Abstract The Gamma Factory initiative proposes to develop novel research tools at CERN by
producing, accelerating, and storing highly relativistic, partially stripped ion beams in the …

Measurement of QED and Hyperfine Splitting in the - X-Ray Transition in Li-like

P Beiersdorfer, AL Osterheld, JH Scofield… - Physical review …, 1998 - APS
A measurement of the 2 s 1/2− 2 p 3/2 x-ray transition in trapped Li-like Bi 8 0+ ions was
made that resolved the 0.820±0.026 eV hyperfine splitting of the (1 s 2 2 s) F= 4, 5 ground …

Testing quantum electrodynamics with exotic atoms

N Paul, G Bian, T Azuma, S Okada, P Indelicato - Physical Review Letters, 2021 - APS
Precision study of few-electron, high-Z ions is a privileged field for probing high-field, bound-
state quantum electrodynamics (BSQED). However, the accuracy of such tests is plagued by …