Gapped non-Hermitian systems exhibit topologically distinct spectral Riemann sheet configurations protected by energy gaps, formed by annihilating exceptional points across the Brillouin zone boundary.
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A unified framework classifies non-Hermitian skin effects into electric (imaginary scalar potential) and magnetic (imaginary vector potential) types, identifies boundary-insensitive modes, and reveals a delocalization phase transition.
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Spectral Riemann Sheet Topology of Gapped Non-Hermitian Systems
Gapped non-Hermitian systems exhibit topologically distinct spectral Riemann sheet configurations protected by energy gaps, formed by annihilating exceptional points across the Brillouin zone boundary.
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A Unified Framework for the Non-Hermitian Localization: Boundary-Insensitive Modes and Electric-Magnetic Analogy
A unified framework classifies non-Hermitian skin effects into electric (imaginary scalar potential) and magnetic (imaginary vector potential) types, identifies boundary-insensitive modes, and reveals a delocalization phase transition.