Gauging Symmetry: A Bridge Between Two Notions of Topological Superconductivity

Author: Lee, Dung-Hai

Affiliation: University of California

Type: Prize Talk

Date and Time: 21.07.2026, 08:45 - 10:15

Topological phases arise in two forms: symmetry-protected topology, with protected boundary states, and intrinsic topological order, with anyons and long-range entanglement. In this talk, I will show how these two notions are connected in superconductors by gauging the protecting symmetry. For two-dimensional chiral p+ip superconductors, promoting fermion parity to a dynamical gauge symmetry transforms a topological superconductor into non-Abelian Ising topological order, while a trivial superconductor yields the toric code. I will also discuss possible routes toward realizing gauged superconductors experimentally.