Parity-induced generalized Brillouin zone without non-Hermitian skin effect
- URL: http://arxiv.org/abs/2605.30978v1
- Date: Fri, 29 May 2026 08:17:42 GMT
- Title: Parity-induced generalized Brillouin zone without non-Hermitian skin effect
- Abstract summary: We show that the non-Hermitian skin effect can arise as parity-induced even-odd effects in non-Hermitian systems without skin effect.<n>The effect can arise in skin-effect models as entirely separate distinguishable feature.
- Score: 51.56484100374058
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Acute spectral sensitivity to boundary conditions and the formation of a generalized Brillouin zone associated with complex quasimomenta are features frequently attributed to systems with non-trivial non-Hermitian topology, showcasing the non-Hermitian skin effect. We show that, away from the thermodynamic limit, these features themselves are not uniquely tied to this phenomenon; they can similarly arise as parity-induced even-odd effects in non-Hermitian systems without skin effect. Despite an underlying generalized Brillouin zone description, wavefunctions remain delocalized. In addition, the effect can arise in skin-effect models as entirely separate distinguishable feature
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