Strong-coupling theory for the spin-phonon model

1998 ◽  
Vol 57 (1) ◽  
pp. 347-361 ◽  
Author(s):  
Alois Würger
Keyword(s):  
Strong Coupling ◽  
Coupling Theory ◽  
Strong Coupling Theory ◽  
Phonon Model

scholarly journals STRONG COUPLING THEORY OF IMPURE SUPERCONDUCTORS: REAL SPACE FORMALISM

1996 ◽  
Vol 10 (08) ◽  
pp. 353-358 ◽  
Author(s):  
YONG-JIHN KIM
Keyword(s):  
Transition Temperature ◽  
Strong Coupling ◽  
Real Space ◽  
The Self ◽  
Coupling Theory ◽  
Strong Coupling Theory ◽  
Nonmagnetic Impurities ◽  
Space Formalism ◽  
Self Consistency ◽  
Phonon Model

In the electron–phonon model, the influence of nonmagnetic impurities on the transition temperature of superconductors is revisited. Anderson’s pairing condition between time-reversed eigenstate pairs is derived from the physical constraint of the Anomalous Green’s function. After this pairing condition is incorporated into the self-consistency equation, one may find that the phonon-mediated interaction decreases exponentially by localization.

"BrokenSU(3)" Symmetry in Strong-Coupling Theory

1968 ◽  
Vol 170 (5) ◽  
pp. 1582-1585
Author(s):  
Hock-kee Sim ◽  
W. D. McGlinn
Keyword(s):  
Strong Coupling ◽  
Coupling Theory ◽  
Strong Coupling Theory
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