Coexistence and decoupling of bulk and edge states in disordered two-dimensional topological insulators
Coexistence and decoupling of bulk and edge states in disordered two-dimensional topological insulators
We investigate the scattering and localization properties of edge and bulk states in a disordered two-dimensional topological insulator when they coexist at the same fermi energy. Due to edge-bulk backscattering (which is not prohibited \emph{a priori} by topology or symmetry), Anderson disorder makes the edge and bulk states localized indistinguishably. …