Ground state of superheavy elements with $120 \leq Z \leq 170$: systematic study of the electron-correlation, Breit, and QED effects

TL;DR

This study systematically investigates the ground-state configurations of superheavy elements with atomic numbers 120 to 170, considering relativistic, QED, and electron correlation effects using advanced computational methods.

Contribution

It provides a comprehensive relativistic analysis of superheavy elements' electronic structures, including Breit and QED effects, which were not thoroughly examined before.

Findings

Relativistic and QED effects significantly influence ground-state configurations.

Electron correlation effects are crucial for accurate predictions.

The study refines the understanding of electronic structure in superheavy elements.

Abstract

For superheavy elements with atomic numbers $120\leq Z \leq 170$, the concept of the ground-state configuration is being reexamined. To this end, relativistic calculations of the electronic structure of the low-lying levels are carried out by means of the Dirac-Fock and configuration-interaction methods.The magnetic and retardation parts of the Breit interaction as well as the QED effects are taken into account. The influence of the relativistic, QED, and electron-electron correlation effects on the determination of the ground-state is analyzed.