Ground state of superheavy elements with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>120</mml:mn><mml:mo>≤</mml:mo><mml:mi>Z</mml:mi><mml:mo>≤</mml:mo><mml:mn>170</mml:mn></mml:mrow></mml:math>: Systematic study of the electron-correlation, Breit, and QED effects

Abstract

For superheavy elements with atomic numbers $120\ensuremath{\le}Z\ensuremath{\le}170$, 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.

Topics & Concepts