Majorana bound states in vortex lattices on iron-based superconductors

Majorana quasi-particles may arise as zero-energy bound states in vortices on the surface of a topological insulator that is proximitized by conventional superconductor. Such system finds its natural realization iron-based superconductor FeTe0.55Se0.45 combines bulk s-wave pairing with spin helical Dirac states, and which thus comprises ingredients for modes absence an additional proximitizing In this work, we investigate emergence vortex lattices such materials depending parameters like magnetic field strength lattice disorder. A simple 2D square model here allows us to capture basic physics underlying system. To address problem disordered lattice, occurs real systems, adopt technique singular gauge transformation modify it can be used periodic boundary conditions. This approach go larger than otherwise accessible, successful replicating several experimental observations platform. Finally related should useful further investigations role interactions, toward quantum computation.