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cond-mat.supr-con2026
Robustness of the Kohn-Luttinger mechanism against symmetry breaking
Amir Dalal, Jonathan Ruhman, Vladyslav Kozii
We investigate how strongly broken spatial symmetries affect the Kohn--Luttinger (KL) mechanism, in which superconductivity emerges purely from repulsive interactions. While the or…
cond-mat.supr-con2023★ 11 cited
The field theory of a superconductor with repulsion
Amir Dalal, Jonathan Ruhman, Vladyslav Kozii
A superconductor emerges as a condensate of electron pairs, which bind despite their strong Coulomb repulsion. Eliashberg's theory elucidates the mechanisms enabling them to overco…