Exact exchange-correlation potential for a time-dependent two-electron system

被引：32

作者：

D'Amico, I ^{[1
]}

Vignale, G ^{[1
]}

机构：

[1] Univ Missouri, Dept Phys, Columbia, MO 65211 USA

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.59.7876

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We obtain a solution of the time-dependent Schrodinger equation for a two-electron system confined to a plane by an isotropic parabolic potential whose curvature is periodically modulated in time. From this solution we compute the "exact" time-dependent exchange correlation potential v(xc), which enters the Kohn-Sham equation of time-dependent density functional theory. Our "exact" result provides a benchmark against which various approximate forms for v(xc) can be compared. Finally, v(xc) is separated in an adiabatic and a pure dynamical part and it is shown that, for the particular system studied, the dynamical part is negligible. [S0163-1829(99)01011-5].

引用

页码：7876 / 7887

页数：12

共 26 条

[1]

Arnold VI., 1989, MATH METHODS CLASSIC, P520, DOI 10.1007/978-1-4757-1693-1

[2] Electrons in artificial atoms [J].