Analytical expressions for the local-held factor G(q) and the exchange-correlation kernel Kxc(r) of the homogeneous electron gas

被引：119

作者：

Corradini, M ^{[1
]}

Del Sole, R ^{[1
]}

Onida, G ^{[1
]}

Palummo, M ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, Ist Nazl Fis Mat, I-00133 Rome, Italy

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.57.14569

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an analytical expression-for the local-field factor G(q) of the homogeneous electron gas which reproduces recently published quantum Monte Carlo data by Moroni, Ceperley, and Senatore [Phys. Rev. Lett. 75, 689 (1995)], reflects the theoretically known asymptotic behaviors for both small-and large-q limits, and allows us to express the exchange-correlation kernel K-xc analytically in both the direct and reciprocal space. The last property is particularly useful in numerical applications to real solids.

引用

页码：14569 / 14571

页数：3

共 17 条

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