SPACE-TIME METHOD FOR AB-INITIO CALCULATIONS OF SELF-ENERGIES AND DIELECTRIC RESPONSE FUNCTIONS OF SOLIDS

被引：220

作者：

ROJAS, HN ^{[1
]}

GODBY, RW ^{[1
]}

NEEDS, RJ ^{[1
]}

机构：

[1] UNIV MAYOR SAN SIMON,FAC SCI & TECHNOL,CARRERA FIS,COCHABAMBA,BOLIVIA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.74.1827

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new method for efficient, accurate calculations of many-body properties of periodic systems. The main features are (i) use of a real-space/imaginary-time representation, (ii) avoidance of any model form for the screened interaction W, (iii) exact separation of W and the self-energy into short- and long-ranged parts, and (iv) the use of novel analytical continuation techniques in the energy domain. The computer time scales approximately linearly with system size. We give results for jellium and silicon, including the spectral function of silicon obtained from the Dyson equation. © 1995 The American Physical Society.

引用

页码：1827 / 1830

页数：4