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math-ph2025
Bounds on in the Eliashberg theory of Superconductivity. II: Dispersive phonons
Michael K. -H. Kiessling, Boris L. Altshuler, Emil A. Yuzbashyan
The standard Eliashberg theory of superconductivity is studied, in which the effective electron-electron interactions are mediated by generally dispersive phonons, with Eliashberg…
math-ph2025
Bounds on in the Eliashberg theory of Superconductivity. I: The -model
Michael K. -H. Kiessling, Boris L. Altshuler, Emil A. Yuzbashyan
Using the recent reformulation for the Eliashberg theory of superconductivity in terms of a classical interacting Bloch spin chain model, rigorous upper and lower bounds on the cri…