Lowest ten 1P Rydberg states of beryllium calculated with all-electron explicitly correlated Gaussian functions

Monika Stanke, Sergiy Bubin, Ludwik Adamowicz

Research output: Contribution to journalArticle

Abstract

In this work we report very accurate calculations of the ten lowest 1 P (L = 1) bound states of the beryllium atom performed with the finite-nuclear-mass (FNM) approach and with all-electron explicitly correlated Gaussian functions. The FNM non-relativistic variational energies of the states are augmented with the leading relativistic and quantum-electrodynamics (QED) corrections. The latter include the Araki-Sucher QED correction whose implementation for the L = 1 states is featured in this work. The calculated energies for interstate transition energies are compared with the experimental results.

Original languageEnglish
Article number155002
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume52
Issue number15
DOIs
Publication statusPublished - Jul 16 2019

Keywords

  • explicitly correlated all-electron Gaussian functions
  • finite-nuclear-mass approach
  • Rydberg spectrum of beryllium atom

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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