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Steering of topological criticality in the Su-Schrieffer-Heeger chain via non-Hermitian substitutional impurities
We investigate the topological phase in a one-dimensional Su-Schrieffer-Heeger (SSH) chain in the presence of a finite concentration of non-Hermitian substitutional impurities. Our primary focus is the discovery of a deterministic mechanism to actively reconfigure the topological phase boundaries by
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