Theory of 'hidden' quasi-1D superconductivity in Sr₂RuO₄

Abstract

Is the mechanism of unconventional superconductivity in Sr2RuO4 closer in spirit to superfluid 3He, or to the cuprates, pnictides, and organic superconductors? We challenge prevailing assumptions in this field and using well-controlled perturbative renormalization group calculations, we suggest that superconductivity in Sr2RuO4 resembles more closely the quasi-one dimensional organic superconductors. Our theory has certain phenomenological consequences that are consistent with the experimentally observed phenomena.