Singularity analysis of fourth-order Moller-Plesset perturbation theory

被引：7

作者：

Goodson, David Z. ^{[1
]}

Sergeev, Alexey V. ^{[1
]}

机构：

[1] SE Massachusetts Univ, Dept Chem & Biochem, N Dartmouth, MA 02747 USA

来源：

PHYSICS LETTERS A | 2006年 / 359卷 / 05期

关键词：

many-body perturbation theory; Moller-Plesset perturbation theory; quadratic summation approximants; asymptotic series; singularity analysis;

D O I：

10.1016/j.physleta.2006.06.071

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The usefulness of Moller-Plesset perturbation theory, a standard technique of quantum chemistry, is determined by singularities in the corresponding energy function in the complex plane of the perturbation parameter. A method is developed that locates singularities from fourth-order perturbation series, using quadratic approximants with bilinear conformal mappings. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：481 / 486

页数：6

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