Differential equation for ground-state electron density of He-like ions for large atomic number

被引：18
|
作者：
Gál, T
March, NH
Nagy, A [1 ]
机构：
[1] Lajos Kossuth Univ, Inst Theoret Phys, H-4010 Debrecen, Hungary
[2] Univ Oxford, Oxford, England
[3] Univ Antwerp, Ruca, Dept Phys, B-2020 Antwerp, Belgium
来源：
CHEMICAL PHYSICS LETTERS | 1999年 / 305卷 / 5-6期
基金：
匈牙利科学研究基金会;
关键词：
D O I：
10.1016/S0009-2614(99)00384-X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An explicit differential equation satisfied by the ground-state electron density of He-like ions is constructed for large atomic number Z, As in the authors' earlier work on the Hookean atom, the result is a linear third-order homogeneous differential equation. The first-order interacting density matrix is then written in terms of the ground-state electron density. A functional for the correlation kinetic energy is thereby exhibited in the large Z Limit for these two-electron ions. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：429 / 432
页数：4
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