Publication
Title
Density functional for the ground-state energy of artificial two-electron atoms with harmonic confinement
Author
Abstract
An exact analytical expression for the ground-state energy density functional for artificial two-electron atoms, in harmonic confinement, and with an inverse square law interaction u(r12) = ë/r212 between the electrons, is derived. This is the first time when the ground-state energy is exactly exhibited as a functional of the density in the case of interacting fermions. To achieve this, a generalization for the given interparticle interaction of the 'noninteracting' virial theorem is also shown to be valid.
Language
English
Source (journal)
Journal of physics : B : atomic, molecular and optical physics / Physical Society. - London
Publication
London : 2009
ISSN
0022-3700
Volume/pages
42:2(2009), p. 025001,1-025001,4
ISI
000262374800005
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 30.04.2009
Last edited 23.11.2017
To cite this reference