Symmetry Restoration in Hartree-Fock-Bogoliubov Based Theories

被引：76

作者：

Bertsch, G. F. ^{[1
,2
]}

Robledo, L. M. ^{[3
]}

机构：

[1] Univ Washington, Inst Nucl Theory, Seattle, WA 98915 USA

[2] Univ Washington, Dept Phys, Seattle, WA 98915 USA

[3] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 04期

基金：

美国国家科学基金会;

关键词：

GENERATOR-COORDINATE METHOD; MATRIX-ELEMENTS;

D O I：

10.1103/PhysRevLett.108.042505

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a Pfaffian formula for projection and symmetry restoration for wave functions of the general Bogoliubov form, including quasiparticle excited states and linear combinations of them. This solves a long-standing problem in calculating states of good symmetry, arising from the sign ambiguity of the commonly used determinant formula. A simple example is given of projecting a good particle number and angular momentum from a Bogoliubov wave function in the Fock space of a single j-shell.

引用

页数：4

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