Universal suppression of superfluid weight by non-magnetic disorder in $s$-wave superconductors independent of quantum geometry and band dispersion

Motivated by the experimental progress in controlling properties of energy bands superconductors, significant theoretical efforts have been devoted to study effect quantum geometry and flatness dispersion on superfluid weight. In conventional where are wide Fermi is large, contribution due negligible, but opposite limit flat-band superconductors weight originates purely from Bloch wave functions. Here, we how band affect disorder-induced suppression Surprisingly, find that disorder-dependence universal across a variety models, independent dispersion. Our results suggest superconductor as resilient disorder superconductor.