most citedHigher-order topological states in photonic Thue-Morse quasicrystals: quadrupole insulator and a new origin of corner states

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physics.optics2022★ 1 cited

Higher-order topological states in photonic Thue-Morse quasicrystals: quadrupole insulator and a new origin of corner states

Langlang Xiong, Yu Zhang, Yufu Liu +2

Corner states (CSs) in higher-order topological insulators (HOTIs) have recently been of great interest in both crystals and quasicrystals. In contrast to electronic systems, HOTIs…