EFFECTS OF RETARDATION AND LONG-RANGE FORCES ON PAIRING IN A FERMI GAS WITH REPULSION

被引：12

作者：

ALEXANDROV, AS ^{[1
]}

GOLUBOV, AA ^{[1
]}

机构：

[1] RHEIN WESTFAL TH AACHEN,INST THEORET PHYS C,W-5100 AACHEN,GERMANY

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.45.4769

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of retardation on the "effective interaction" due to polarization in a Fermi gas with short-range repulsion is studied. The consequences of pairing with nonzero angular momentum (as discussed by Kohn and Luttinger) are analyzed. The frequency dependence of the scattering amplitude in the Cooper channel suppresses the characteristic temperature significantly for odd angular momenta and enhances it for even ones. Cooper pairing with any angular momentum in the case of long-range Coulomb repulsion is shown to be impossible.

引用

页码：4769 / 4773

页数：5

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