- 98-49 Yong-Jihn Kim
- Pairing Constraint on the Real Space Formalism of
the Theory of Superconductivity
Feb 5, 98
(auto. generated ps),
of related papers
Abstract. We review the new theory of impure superconductors
constructed by Kim and Overhauser, and further developed by Kim.
It was shown that Gor'kov's self-consistency equation needs a pairing
constraint derived from the Anomalous Green's function.
Whereas earlier studies have applied a constraint only on the
pair potential, we show that the kernel also should be fixed by the
The Bogoliubov-de Gennes equations need a pairing constraint in
order to obtain the proper vacuum state by the corresponding unitary
The relation between the pair potential and the gap parameter is clarified.
This new study opens up a reinvestigation of inhomogeneous superconductors.
We will discuss (i) strong coupling theory of dirty superconductors,
(ii) suppression of magnetic impurity effect by ordinary
impurities, (iii) weak localization correction to the
phonon-mediated interaction, and (iv) other inhomogeneous