${\mathbb{Z}}_{2q}$ parafermionic hinge states in a three-dimensional array of coupled nanowires

Sarthak Girdhar, Viktoriia Pinchenkova, Even Thingstad +1

We construct a model of a three-dimensional helical second-order topological superconductor formed by an array of weakly coupled Rashba nanowires. We identify the parameter regime…