Fragile non-Bloch spectrum and unconventional Green’s function
Published in arXiv preprint, 2024
This preprint studies an extreme form of spectral sensitivity in non-Hermitian systems with the skin effect. It shows that exponentially small boundary perturbations can strongly reshape the open-boundary spectrum, connects this fragility to unconventional V-shaped asymptotics in Green's functions, and identifies a real-to-complex spectral transition induced by tiny boundary effects.
Preprint: arXiv:2410.23175
Recommended citation: Fei Song*, Hong-Yi Wang*, and Zhong Wang. "Fragile non-Bloch spectrum and unconventional Green's function." arXiv:2410.23175 (2024).
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