Topological Stability of Majorana Zero Modes in Superconductor-Topological Insulator Systems

被引：26

作者：

Fukui, Takahiro ^{[1
]}

Fujiwara, Takanori ^{[1
]}

机构：

[1] Ibaraki Univ, Dept Phys, Mito, Ibaraki 3108512, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2010年 / 79卷 / 03期

关键词：

Majorana zero modes; superconductor-topological insulator system; index theorem; topological invariants;

D O I：

10.1143/JPSJ.79.033701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive an index theorem for zero-energy Majorana fermion modes in a superconductor-topological insulator system in both two and three dimensions, which is valid for models with chiral symmetry as well as particle-hole symmetry. For more generic models without chiral symmetry, we suggest that Majorana zero modes are classified by Z(2).

引用

页数：4

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