A perturbative treatment for the energy levels of neutral atoms

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Ikhdair S. M., Sever R.

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, vol.21, no.31, pp.6465-6476, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 31
  • Publication Date: 2006
  • Doi Number: 10.1142/s0217751x06034240
  • Journal Name: INTERNATIONAL JOURNAL OF MODERN PHYSICS A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.6465-6476
  • Keywords: Yukawa potential, perturbation theory, COULOMB, POTENTIALS, EXPANSION
  • Middle East Technical University Affiliated: No

Abstract

Energy levels of neutral atoms have been reexamined by applying an alternative perturbative scheme in solving the Schrodinger equation for the Yukawa potential model with a modified screening parameter. The predicted shell binding energies axe found to be quite accurate over the entire range of the atomic number Z up to 84 and compare very well with those obtained within the framework of hypervirial-Pade scheme and the method of shifted large-N expansion. It is observed that the new perturbative method may also be applied to the other areas of atomic physics.