Approach towards the critical charge of some excited states of the Be isoelectronic series

Jacob Katriel, J. P. Marques, P. Indelicato, A. M. Costa, M. C. Martins, J. P. Santos, F. Parente

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A definitive determination of the nature of the approach to the critical charge is illustrated for the (1s(2)2s(3)s)S-1,S-3 and the (1s(2)2s3p)P-1,P-3 states of the Be isoelectronic series. The features that conclusively indicate that the outermost orbital becomes an infinitely diffuse hydrogenlike orbital upon approaching the critical charge Z(c) = 3 are the asymptotic proportionality of the ionization energy to (Z - 3)(2) and the approach of the corresponding quantum defect to an integer which is equal to the number of orbitals of the same symmetry in the atomic core.

Original languageEnglish
Article number052519
Number of pages5
JournalPhysical Review A
Volume90
Issue number5
DOIs
Publication statusPublished - 25 Nov 2014

Keywords

  • DIRAC-FOCK CALCULATIONS
  • HYDROGEN NEGATIVE-ION
  • ELECTRON SELF-ENERGY
  • STRONG COULOMB FIELD
  • ONE BOUND-STATE
  • QED CORRECTIONS
  • GROUND-STATE
  • H-ION
  • ATOMS
  • RADIUS

Cite this