A 2-PARAMETER SINGLE-PARTICLE DESCRIPTION OF THE GROUND-STATE OF 2-ELECTRON ATOMS

Authors
PORRAS I
Citation
I. Porras, A 2-PARAMETER SINGLE-PARTICLE DESCRIPTION OF THE GROUND-STATE OF 2-ELECTRON ATOMS, Journal of physics. B, Atomic molecular and optical physics, 28(20), 1995, pp. 4391-4398
Citations number
10
Categorie Soggetti
Physics, Atomic, Molecular & Chemical",Optics
Journal title
Journal of physics. B, Atomic molecular and optical physics → ACNP
ISSN journal
09534075
Volume
28
Issue
20
Year of publication
1995
Pages
4391 - 4398
Database
ISI
SICI code
0953-4075(1995)28:20<4391:A2SDOT>2.0.ZU;2-C
Abstract
A simple variational-type model for the ground state of two-electron a toms is here proposed. It is based on a single-particle wavefunction w ith two free parameters generalizing the screened hydrogenic one, and which holds the Kato cusp condition exactly. The results for the expec tation values of different properties including the energy are close t o different Hartree-Fock ones reported in the literature.