#arxiv_2311_02155 — Public Fediverse posts
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Today's #arXivsummary: https://arxiv.org/abs/2311.02155 by Pak et. al. Authors show that the PT-symmetry stabilizes the Hopf invariant in the Hopf insulator even in the presence of non-Hermiticity. Zak phase remains quantized. #CondMat #arXiv_2311_02155