https://doi.org/10.1140/epjd/e2009-00222-6
Electron–electron interaction effects in heliumlike atoms confined in finite external square-well potential
Laboratoire de Physique Fondamentale, UFD Physique et Sciences de
l'Ingénieur, University of Douala, P.O. Box 24157, Douala, Cameroon
Corresponding author: a omotapon@scp-web.org
Received:
24
November
2008
Revised:
14
May
2009
Published online:
7
August
2009
A B-spline-based configuration interaction method is used to compute the energy levels of the ground and a few excited states of heliumlike atoms confined in a finite external square-well potential, as a function of the depth of the confining shell potential. The electron probability density and the dependence of the energy levels in the shell potential are used to account for the electron-electron interaction when the atoms are submitted to such an environment.
PACS: 31.15.ve – Electron correlation calculations for atoms and ions: ground state / 31.15.vj – Electron correlation calculations for atoms and ions: excited states / 31.15.xt – Variational techniques / 37.10.gh – Atom traps and guides
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009
