Higher-order topological insulator with glide reflection symmetry

Shaoliang Zhang

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arXiv · 2209.02255

Higher-order topological insulator with glide reflection symmetry

Shaoliang Zhang

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Abstract

The Benalcazar-Bernevig-Hughes(BBH) model is one of the most representative higher-order topological insulators with different bulk-edge correspondence comparing conventional topological states. In this work, we propose to realize a couple-BBH model with glide reflection symmetry by coupling two topologically distinct BBH models. Such a system gives rise to intriguing properties beyond the traditional BBH model. A topological phase transition from higher-order topological phase to a semimetal has been predicted in this system. Furthermore, the band crossing points and nodal ring protected by glide reflection symmetry has also been explored. Our work provides a viewpoint to demonstrate the versatile phenomena induced by the interplay between higher-order topology and nonsymmorphic symmetries.

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Shaoliang Zhang. 2022-09-06. Higher-order topological insulator with glide reflection symmetry. https://arxiv.org/abs/2209.02255

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