Electron densities of the He-like sequence of atomic ions, and associated physical properties

I. A. Howard, F. Bartha, N. H. March, Á Nagy

Research output: Article

6 Citations (Scopus)

Abstract

Motivated by the studies of Baker et al. [J.D. Baker, D.E. Freund, R.N. Hill, J.D. Morgan III, Phys. Rev. A 41 (1990) 1247] and of Li and Shakeshaft [T. Li, R. Shakeshaft, Phys. Rev. A 71 (2005) 052505] on the stability of two electrons and an arbitrary positive charge, we here use the Chandrasekhar three-parameter variational wave function to present analytical ground-state electron densities for the He-like sequence of atomic ions. This input is then used to calculate: (i) kinetic energy densities with correlation, (ii) the single-particle von Weizsäcker counterparts of (i), (iii) the electrostatic potentials at the atomic nuclei, and (iv) ground-state energy differences between the lightest members of the He series. We stress that (ii)-(iv) above are calculated solely from knowledge of the analytical ground-state densities.

Original languageEnglish
Pages (from-to)236-240
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume350
Issue number3-4
DOIs
Publication statusPublished - febr. 6 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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