QED shifts in multivalent heavy ions

TL;DR

This paper integrates QED corrections into advanced correlation calculations for complex heavy ions, comparing four potentials to enhance the accuracy of predictions vital for fundamental physics tests and metrology.

Contribution

It introduces a comprehensive approach to incorporate QED effects into correlation calculations for multivalent heavy ions, evaluating four different QED potentials for improved accuracy.

Findings

All four QED potentials yield consistent results.

Nonlocal potentials outperform local ones for strongly bound electrons.

The approach aids in predicting properties of highly charged ions for future experiments.

Abstract

The quantum electrodynamics (QED) corrections are directly incorporated into the most accurate treatment of the correlation corrections for ions with complex electronic structure of interest to metrology and tests of fundamental physics. We compared the performance of four different QED potentials for various systems to access the accuracy of QED calculations and to make prediction of highly charged ion properties urgently needed for planning future experiments. We find that all four potentials give consistent and reliable results for ions of interest. For the strongly bound electrons the nonlocal potentials are more accurate than the local potential.