The quantum distance quantifies the similarity between two quantum states and plays a relevant role in the physics of flat bands, e.g. flat band superconductivity or Landau levels. The authors propose a construction scheme for tight-binding models hosting a singular flat band with a prescribed maximum quantum distance and establish a bulk-boundary correspondence between the quantum distance and the boundary modes.
- Hyeongseop Kim
- Chang-geun Oh
- Jun-Won Rhim
