Related papers: Intrinsic non-Hermitian topological phases

Intrinsic non-Hermitian topological phases

URL: http://arxiv.org/abs/2509.06879v1
Date: Mon, 08 Sep 2025 16:54:54 GMT
Title: Intrinsic non-Hermitian topological phases
Authors: Ken Shiozaki,
Abstract summary: We study the interplay of non-Hermitian topological phases under point- and line-gap conditions.<n>The present paper develops a unified formulation and provides explicit computations for all internal symmetries.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
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.

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