Precision spectroscopy of atomic systems is an invaluable tool for the study of fundamental
interactions and symmetries. Recently, highly charged ions have been proposed to enable …

A review of the current status of the theoretical study of spectral line profile for systems with
few electrons is given in this paper. The hydrogen atom and highly charged ions are …

Although based on lectures given for graduate students and postgraduates starting in
plasma physics, this concise introduction to the fundamental processes and tools is as well …

A model operator approach to calculations of the QED corrections to energy levels in
relativistic many-electron atomic systems is developed. The model Lamb shift operator is …

All evidence so far suggests that the absolute spatial orientation of an experiment never
affects its outcome. This is reflected in the standard model of particle physics by requiring all …

We measure optical spectra of Nd-like W, Re, Os, Ir, and Pt ions of particular interest for
studies of a possibly varying fine-structure constant. Exploiting characteristic energy scalings …

We present an experimental concept and setup for laser-microwave double-resonance
spectroscopy of highly charged ions in a Penning trap. Such spectroscopy allows a highly …

The relativistic nuclear recoil, higher-order interelectronic-interaction, and screened QED
corrections to the transition energies in Li-like ions are evaluated. The calculation of the …

Nuclear deformation effects on the binding energies in heavy ions are investigated.
Approximate formulas for the nuclear-size correction and the isotope shift for deformed …

The successive ionization potentials (IPs) and electron affinities (EAs) for superheavy
elements with 111≤ Z≤ 114, namely, Rg, Cn, Nh, and Fl, are reexamined using the …