Anomalous localization at the boundary of an interacting topological insulator
Anomalous localization at the boundary of an interacting topological insulator
The boundary of a topological insulator (TI) hosts an anomaly restricting its possible phases: e.g. 3D strong and weak TIs maintain surface conductivity at any disorder if symmetry is preserved on-average, at least when electron interactions on the surface are weak. However the interplay of strong interactions and disorder with …