Higher-order topological phases in crystalline and non-crystalline systems: a review
Yan-Bin Yang,
Jiong-Hao Wang,
Kai Li
et al.
Abstract:In recent years, higher-order topological phases have attracted great interest in various fields of physics. These phases have protected boundary states at lower-dimensional boundaries than the conventional first-order topological phases due to the higher-order bulk-boundary correspondence. In this review, we summarize current research progress on higher-order topological phases in both crystalline and non-crystalline systems. We firstly introduce prototypical models of higher-order topological phases in cryst… Show more
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