南京师大学报（自然科学版）2017，Vol.40Issue(3)：110-117,8.DOI:10.3969/j.issn.1001-4616.2017.03.016
一维磁性原子链系统中的Majorana费米子态
Majorana Fermion in a System of One Dimensional Magnetic Atomic Chain
杨双波1
作者信息
- 1. 南京师范大学物理科学与技术学院,江苏省大规模复杂系统数值模拟重点实验室,江苏 南京210023
- 折叠
摘要
Abstract
For a model of one dimensional magnetic atomic chain in both a helical magnetic field and a transverse uniform magnetic field,we calculate its energy spectrum by solving Bogoliubov-de-Genes equation selfconsistently in the mean field approximation. We find that for a certain parameter setting,energy spectrum evolving with amplitude of helical magnetic field,appears Majorana fermion eigenstates. We calculate local density of states,and find that the local density of states for Majorana fermion shows peaks at the both ends(or at middle)of the magnetic atomic chain. We calculate wave function,and its spatial distribution agrees with local density of states.关键词
Majorana费米子/磁性原子链/BdG方程/局域态密度Key words
Majorana fermion/magnetic atomic chain/BdG equation/localized density of states分类
数理科学引用本文复制引用
杨双波..一维磁性原子链系统中的Majorana费米子态[J].南京师大学报（自然科学版）,2017,40(3):110-117,8.
