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Zhang's connectedness conjecture for single-band generalized Brillouin zones
For a single-band one-dimensional model, let the generalized Brillouin zone (GBZ) be the collection of complex numbers $z_p(E)$ and $z_{p+1}(E)$ satisfying $|z_p(E)|=|z_{p+1}(E)|$ ,…
Conjectureopennon-hermitian-physics spectral-topologyarXiv posted 2 days ago

Zhang's connectedness conjecture for single-band generalized Brillouin zones