Solving the Richardson equations close to the critical points

被引：30

作者：

Dominguez, F. ^{[1
]}

Esebbag, C.

Dukelsky, J.

机构：

[1] Univ Alcala de Henares, Dept Matemat, Alcala De Henares 28871, Spain

[2] CSIC, Ist Estructura Mat, E-28006 Madrid, Spain

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2006年 / 39卷 / 37期

关键词：

D O I：

10.1088/0305-4470/39/37/002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the Richardson equations close to the critical values of the pairing strength g(c), where the occurrence of divergences precludes numerical solutions. We derive a set of equations for determining the critical g values and the non-collapsing pair energies. Studying the behaviour of the solutions close to the critical points, we develop a procedure to solve numerically the Richardson equations for arbitrary coupling strength.

引用

页码：11349 / 11360

页数：12

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