Higher-winding phases with multiple Majorana pairs per end in 1D non-Hermitian topological superconductors are mapped with the Schur-Cohn zero-counting method and confirmed in open-boundary spectra.
Quasiperiodicity-induced non-Hermitian skin effect from the breakdown of scale-free localization
3 Pith papers cite this work. Polarity classification is still indexing.
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abstract
Non-reciprocal systems exhibit extreme sensitivity to boundary conditions, typically manifesting as the non-Hermitian skin effect (NHSE) under open boundaries. By bridging the boundaries with a tunable impurity bond, one can access intermediate regimes where scale-free localization (SFL) can emerge. Here, we investigate the competition between such boundary coupling and quasiperiodic disorder in a one-dimensional non-reciprocal lattice. Our analyses reveal a quasiperiodicity-induced breakdown of the SFL regime, which evolves into either the NHSE or an extended regime, depending on boundary conditions. These results uncover the crucial roles of boundary effects and quasiperiodicity in non-Hermitian systems.
years
2026 3representative citing papers
A new interaction-mediated drag-induced non-Hermitian skin effect is proposed for Bose-Fermi mixtures with asymmetric bosonic tunneling.
In the non-Hermitian SSH chain with AAH disorder, a competition regime shows reentrant partial delocalization, a modified localization boundary λ_c(δ)=2√(v_eff w), unwinding of spectral loops, and entanglement suppression by skin effect.
citing papers explorer
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Higher-winding phases in one-dimensional non-Hermitian topological superconductors
Higher-winding phases with multiple Majorana pairs per end in 1D non-Hermitian topological superconductors are mapped with the Schur-Cohn zero-counting method and confirmed in open-boundary spectra.
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Drag-induced skin effect in a Bose-Fermi mixture
A new interaction-mediated drag-induced non-Hermitian skin effect is proposed for Bose-Fermi mixtures with asymmetric bosonic tunneling.
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Competing skin effect and quasiperiodic localization in the non-Hermitian Su-Schrieffer-Heeger chain: Reentrant delocalization, spectral topology destruction, and entanglement suppression
In the non-Hermitian SSH chain with AAH disorder, a competition regime shows reentrant partial delocalization, a modified localization boundary λ_c(δ)=2√(v_eff w), unwinding of spectral loops, and entanglement suppression by skin effect.