Superconducting critical temperature via a nonperturbative calculation of the vertex function

被引：8
作者：
Cosenza, F [1 ]
De Cesare, L
Girard, MF
机构：
[1] Univ Salerno, Dipartimento Sci Fis ER Caianiello, I-84081 Baronissi, SA, Italy
[2] Unita Salerno, Ist Nazl Fis Mat, Salerno, Italy
来源：
PHYSICAL REVIEW B | 1999年 / 59卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.59.3349
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The basic idea of the gauge technique is used for a nonperturbative study of the vertex correction effects on the BCS formula for the superconducting critical temperature. Qualitative agreement with recent perturbative predictions is found, supporting the effectiveness of the approach. Nevertheless, some questions arise about the validity limit of the BCS pairing model which stimulate further deeper investigations. [S0163-1829(99)04402-1].
引用
收藏
页码：3349 / 3352
页数：4
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