Floquet topological phases with time-reversal and space inversion symmetries and dynamical detection of topological charges

Abstract

For spinful systems with spin 1/2, it is generally believed that P and T invariant strong and second-order topologies exist in four band and eight band system, respectively. Here, by using periodic driving, we find it is possible to have strong topological insulator, second-order topological insulator and hybrid-order topological insulator in a single four band system. Furthermore, we established a direct connection between topology and dynamics. More convenient experimental detection for these topological phases has also been proposed. This study provides the theoretical basis for novel topological insulator that possess hybrid-order boundary states beyond the conventional regimes.

arXiv comment7 pages

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Cited by in corpus (3)

• Unconventional hybrid-order topological insulators
• Five-dimensional Floquet topological semimetals with emergent Yang monopoles and linked Weyl surfaces
• Floquet composite Dirac semimetals