井冈山大学学报（自然科学版）2025，Vol.46Issue(2)：20-26,7.DOI:10.3969/j.issn.1674-8085.2025.02.003
二维拓扑超导的Z2强弱拓扑分类
THE Z2 TOPOLOGICAL CLASSIFICATION ON TWO-DIMENSIONAL TOPOLOGICAL SUPERCONDUCTORS
摘要
Abstract
A set of invariants related to particle-hole symmetry is found from the Zak phase angle,the equivalent between the Kitaev Z2 invariant and the Zak phase in two-dimentional system is proved in this paper.This set of invariants provides more complete information about the topology boundary zero modes than the Chern numbers.On this base,two topological superconductivity is classified as strong and weak,and the causes of mismatch between the Chern numbers and the numbers of Majorana zero modes in topological superconductors are explained.Compared with the topological insulator,the topological superconductivity is characterized by the Z2 invariant rather than the Chern numbers.关键词
拓扑分类/强拓扑超导/弱拓扑超导/Z2不变量/二维系统Key words
topological classification/strong topological superconductors/weak topological superconductors/Z2 topological invariant/two dimensional system分类
物理学引用本文复制引用
胡潇,肖进鹏,徐珮芝,许江川..二维拓扑超导的Z2强弱拓扑分类[J].井冈山大学学报（自然科学版）,2025,46(2):20-26,7.基金项目
国家自然科学基金项目(11947082) （11947082）
井冈山大学自然科学基金项目(JZ2403) （JZ2403）
井冈山大学2023年校级大学生创新创业训练计划项目 （）
