Edge insulating topological phases in a two-dimensional superconductor with long-range pairing
Edge insulating topological phases in a two-dimensional superconductor with long-range pairing
We study the zero-temperature phase diagram of a two-dimensional square lattice loaded by spinless fermions, with nearest-neighbor hopping and algebraically decaying pairing. We find that for sufficiently long-range pairing, new phases occur, not continuously connected with any short-range phase and not belonging to the standard families of topological insulators/superconductors. These …