Correlation energy of double-electron system obtained by using B-spline basic sets

Authors
Liu, LJ Li, L Wu, LK Zhang, ZH Xu, JW Qiao, HX Li, BW
Citation
Lj. Liu et al., Correlation energy of double-electron system obtained by using B-spline basic sets, MOD PHY L B, 12(24), 1998, pp. 1021-1027
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
MODERN PHYSICS LETTERS B
ISSN journal
02179849 → ACNP
Volume
12
Issue
24
Year of publication
1998
Pages
1021 - 1027
Database
ISI
SICI code
0217-9849(19981020)12:24<1021:CEODSO>2.0.ZU;2-2
Abstract
We adopt B-spline finite basic sets to calculate correlation energy of the ground states for five kinds double-electron atoms or ions, which is above Ist order of magnitude better than the standard configuration-interaction ( CI) method and modified configuration-interaction (MCI) method. These resul ts show its superiority when we use it to deal with the problems of atom st ructure.