From Fractionalization to Chiral Topological Superconductivity in a Flat Chern Band

We show that interacting electrons in a flat Chern band can form, in addition to fractional Chern insulators, a chiral f-wave topological superconductor that hosts neutral Majorana fermion edge modes. Superconductivity emerges from an interaction-induced metallic state that exhibits anomalous Hall effect, as observed in rhombohedral graphene and near the ν=2/3 fractional Chern insulator in twisted transition metal dichalcogenides.