Yong-Jihn Kim
 A CONSTRAINT ON THE ANOMALOUS GREEN'S FUNCTION
(26K, PlainTex)

ABSTRACT.  It is shown that the physical constraint of the Anomalous Green's function
gives a natural pairing condition. 
The resulting self-consistency equation is directly related to the BCS gap 
equation. 
Both inhomogeneous and homogeneous systems are considered to illustrate
the importance of the constraint. 
Especially we find weak localization correction to the
phonon-mediated interaction.