# Ground-state ionization energies of boronlike ions

## TL;DR

This paper presents high-precision quantum electrodynamics calculations of the ground-state ionization energies for boronlike ions across a wide range of nuclear charges, improving accuracy over previous estimates.

## Contribution

The study provides the most accurate theoretical ionization energies for boronlike ions by including comprehensive QED effects and higher-order electron correlations.

## Key findings

- Significant improvement in theoretical accuracy of ionization energies.
- Inclusion of all relevant QED effects up to second order.
- Accounted for nuclear recoil and polarization effects.

## Abstract

High-precision QED calculations of the ground-state ionization energies are performed for all boronlike ions with the nuclear charge numbers in the range $16 \leqslant Z\leqslant 96$. The rigorous QED calculations are performed within the extended Furry picture and include all many-electron QED effects up to the second order of the perturbation theory. The contributions of the third- and higher-order electron-correlation effects are accounted for within the Breit approximation. The nuclear recoil and nuclear polarization effects are taken into account as well. In comparison with the previous evaluations of the ground-state ionization energies of boronlike ions the accuracy of the theoretical predictions has been improved significantly.