Majorana零偏压量子化电导的规范不变性  

The gauge invariance of Majorana zero-bias quantized conductance

作　　者：罗运文 LUO Yun-wen(Department of Physics and Electronic Information Engineering,Minnan Normal University,Zhangzhou,Fujian 363000,China)

机构地区：[1]闽南师范大学物理与信息工程学院,福建漳州363000

出　　处：《大学物理》2020年第7期8-9,15,共3页College Physics

基　　金：福建省中青年教师教育科研项目(JT180302)资助。

摘　　要：从规范不变性出发,利用电子与空穴散射对称性,推导出Majorana零偏压量子化电导平台的值为2 e 2/h,得到的结果与现有理论相同,表明出现Majorana零偏压量子化电导平台的本质原因是规范不变性.Based on the gauge invariance and the symmetry of electron and hole scattering,the value of Majorana zero-bias quantized conductivity platform is deduced to be 2 e 2/h.The result is the same as the existing theory.It is shown that the essential reason for the appearance of Majorana zero-bias quantized conductivity platform is based on the gauge invariance.

关 键 词：Majorana费米子 规范不变性 量子化电导 

分 类 号：O469[理学—凝聚态物理]