High-density expansion of correlation energy and its extrapolation to the metallic density region

被引：27

作者：

Endo, T ^{[1
]}

Horiuchi, M

Takada, Y

Yasuhara, H

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.59.7367

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The r(s) expansion of the correlation energy per electron for an electron liquid is completed exactly up to order r(s) in units of Rydberg. A simple but accurate fitting formula for the correlation energy, which is a smooth extrapolation of the r(s) expansion to the region of metallic densities is presented. [S0163-1829(99)07911-4].

引用

页码：7367 / 7372

页数：6

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