Constructing Hopf Insulator from Geometric Perspective of Hopf Invariant

• Published in: Chinese physics letters Vol. 41; no. 3; pp. 37302 - 126
• Main Authors: Chang, Zhi-Wen, Hao, Wei-Chang, Bustamante, Miguel, Liu, Xin
• Format: Journal Article
• Language: English
• Published: Chinese Physical Society and IOP Publishing Ltd 01.03.2024

We propose a method to construct Hopf insulators based on the study of topological defects from the geometric perspective of Hopf invariant I . Firstly, we prove two types of topological defects naturally inhering in the inner differential structure of the Hopf mapping. One type is the four-dimensio...