The onset threshold for time-growing bound states in a PT-symmetric chain of N unit cells is γ_c = 2 sin[π/(4N)], below which time-independent scattering remains physical.
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Supercritical coupling emerges from causality-driven reactive coupling in bright-dark supermodes, producing an open-Dirac singularity and generalized BICs where radiative losses and effective gain balance to diverge the total Q factor.
Non-Hermitian Floquet systems host gapless symmetry-protected topological phases with unified winding numbers and robust edge modes surviving at criticality.
Minimal pseudo-Lorentz-symmetry-breaking Hamiltonian deformations act as bulk probes that separate renormalizable observables from those carrying irreducible non-Hermitian structure in two-dimensional Dirac semimetals with real spectra.
Non-Hermitian skin effect in Rashba nanowire with ferromagnetic lead produces nonreciprocal nonlocal conductance detectable by transport spectroscopy, with exceptional points shifting under open boundary conditions.
Nilpotence and mathematical induction enable systematic design of photonic systems with exceptional points of orders 3, 6, 7, and 14, showing enhanced directional and emission responses.
citing papers explorer
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Physical relevance of time-independent scattering predictions in periodic $\mathcal{PT}$-symmetric chains
The onset threshold for time-growing bound states in a PT-symmetric chain of N unit cells is γ_c = 2 sin[π/(4N)], below which time-independent scattering remains physical.
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Theory of Supercritical Coupling And Generalized Bound States in the Continuum
Supercritical coupling emerges from causality-driven reactive coupling in bright-dark supermodes, producing an open-Dirac singularity and generalized BICs where radiative losses and effective gain balance to diverge the total Q factor.
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Topology and edge modes surviving criticality in non-Hermitian Floquet systems
Non-Hermitian Floquet systems host gapless symmetry-protected topological phases with unified winding numbers and robust edge modes surviving at criticality.
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Minimal Hamiltonian deformations as bulk probes of effective non-Hermiticity in Dirac materials
Minimal pseudo-Lorentz-symmetry-breaking Hamiltonian deformations act as bulk probes that separate renormalizable observables from those carrying irreducible non-Hermitian structure in two-dimensional Dirac semimetals with real spectra.
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Non-Hermitian skin effect and electronic nonlocal transport
Non-Hermitian skin effect in Rashba nanowire with ferromagnetic lead produces nonreciprocal nonlocal conductance detectable by transport spectroscopy, with exceptional points shifting under open boundary conditions.
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Higher-order exceptional points unveiled by nilpotence and mathematical induction
Nilpotence and mathematical induction enable systematic design of photonic systems with exceptional points of orders 3, 6, 7, and 14, showing enhanced directional and emission responses.