Intrinsic non-Hermitian topological phases
Abstract
We study the interplay of non-Hermitian topological phases under point- and line-gap conditions. Using natural homomorphisms from line-gap to point-gap phases, we distinguish extrinsic phases, reducible to Hermitian or anti-Hermitian line-gapped phases, from intrinsic phases, which are genuinely non-Hermitian without Hermitian counterparts. Although classification tables for all symmetry classes were already presented in earlier work, the present paper develops a unified formulation and provides explicit computations for all internal symmetries.
Fields of Study & Subjects
Quantum Mechanics and Non-Hermitian Physics
Geometry and complex manifolds
Advanced Differential Geometry Research
Publication details
- Journal / source
- SciPost Physics Core
- Publisher
- Stichting SciPost
- Volume
- 9
- Issue
- 1
- Publication date
- 13 February 2026
- Language
- EN