BOUNDS FOR THE ELECTRON-DENSITY AT THE NUCLEUS AND FOR THE INTRACULE DENSITY AT THE COALESCENCE POINT FOR 2-ELECTRON ATOMS

Authors
GALVEZ FJ SARSA A
Citation
Fj. Galvez et A. Sarsa, BOUNDS FOR THE ELECTRON-DENSITY AT THE NUCLEUS AND FOR THE INTRACULE DENSITY AT THE COALESCENCE POINT FOR 2-ELECTRON ATOMS, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 35(3), 1995, pp. 163-167
Citations number
21
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift fur Physik. D, Atoms, molecules and clusters → ACNP
ISSN journal
01787683
Volume
35
Issue
3
Year of publication
1995
Pages
163 - 167
Database
ISI
SICI code
0178-7683(1995)35:3<163:BFTEAT>2.0.ZU;2-W
Abstract
The electron density at the nucleus, rho(0), and the interelectronic d istance (intracule) density at the coalescence point, h(0), for two el ectron atoms, which play an important role in the description of the r elativistic corrections to the ground state energy, are studied. Lower and upper bounds to these quantities are found analytically. The qual ity of the bounds is analyzed within the Hartree-Fock framework, for r ho(0), and by means of wave functions of Hylleraas-type for h(0).