Topological modes (TMs) are usually localized at defects or boundaries of a much larger topological lattice1,2. Recent studies of non-Hermitian band theories unveiled the non-Hermitian skin effect (NHSE), by which the bulk states collapse to the boundary as skin modes3,4,5,6. Here we explo...
Ideally, 0D topological states of HTSs are fixed at zero energy owing to chiral symmetry in this system. This requires a large number of periodic lattices, consequently, multiple 0D topological states of HTSs almost do not overlap with each other. However, at finitely small sizes of triangular...
Hermiticity and band topology generates new phenomena such as the non-Hermitian skin effect, which is characterized by non-Bloch band theory and the re-establishment of bulk–boundary correspondence. It also ramifies the possible symmetry classes, thereby expanding the classifications of topological ...
The discovery of non-Hermitian skin effect (NHSE) has opened an exciting direction for unveiling unusual physics and phenomena in non-Hermitian system. Despite notable theoretical breakthroughs, actual observation of NHSE’s whole evolvement, however, re
Hermitian skin effect23. It describes the wave localization toward the open boundaries for an extensive number of bulk modes, which profoundly modifies the band topology and the bulk-boundary correspondence (BBC) and expands the horizon for the study of topological phases of matter, therefore ...