Green's Functions and Gap Equations in Hybridized Two-Band Model of Superconductivity

C. M. I. Okoye

Chinese Journal of Physics

37卷2期（1999 / 04 / 01）

204 - 218

英文

We have derived the explicit expressions for the normal and anomalous one-particle thermal Green's functions in a hybridized two-band model of superconductivity, with taking into account of all possible intraband and interband superconducting interaction terms coupling both bands in the mean field approximation. The self consistent equations for the order parameters are also formally obtained. The possible implications of the results are suggested and illustrated by theoretically calculating, in a simple limit, the densities of states for quasiparticles of the two bands.