Bulk-boundary correspondence in a non-Hermitian system in one dimension with chiral inversion symmetry
Bulk-boundary correspondence in a non-Hermitian system in one dimension with chiral inversion symmetry
Asymmetric coupling amplitudes effectively create an imaginary gauge field, which induces a non-Hermitian Aharonov-Bohm (AB) effect. Nonzero imaginary magnetic flux invalidates the bulk-boundary correspondence and leads to a topological phase transition. However, the way of non-Hermiticity appearance may alter the system topology. By alternatively introducing the non-Hermiticity under symmetry to …