Exotic Non-Abelian Topological Defects in Lattice Fractional Quantum Hall States
Exotic Non-Abelian Topological Defects in Lattice Fractional Quantum Hall States
We investigate extrinsic wormholelike twist defects that effectively increase the genus of space in lattice versions of multicomponent fractional quantum Hall systems. Although the original band structure is distorted by these defects, leading to localized midgap states, we find that a new lowest flat band representing a higher genus system …