Entanglement is one of the most fundamental features of quantum systems.

In this talk, we explore the entanglement spectrum and entropy of Floquet noninteracting fermionic lattice models and build their connections with Floquet topological phases. Topological winding and Chern numbers are introduced to characterize the entanglement spectrum and eigenmodes. Correspondences between the spectrum and topology of Floquet entanglement Hamiltonians under periodic boundary conditions and topological edge states under open boundary conditions are established. The theory is applied to Floquet topological insulators in different symmetry classes and spatial dimensions. Our work provides a solid foundation for the study of rich entanglement patterns in Floquet topological matter.

Ref: https://arxiv.org/abs/2208.02075

周龙文：

中国海洋大学物理与光电工程学院教授，博导。

研究方向：主要从事量子物理、凝聚态物理理论研究。重点研究方向为量子动力学、量子输运、量子模拟，拓扑物态与拓扑相变等.

电子邮箱：zhoulongwen@ouc.edu.cn

联系人：田矗舜