Ask a Question

Prefer a chat interface with context about you and your work?

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 …