拓扑超导中的Majorana费米子约瑟夫振荡模型  

A Josephson Oscillation Model of Majorana Fermions in the Topological Superconductors

作　　者：罗运文[1] LUO Yun-wen(College of Physics and Information Engineering,MinNan Normal University,Zhangzhou 363000,China)

机构地区：[1]闽南师范大学物理与电子信息工程学院

出　　处：《量子光学学报》2018年第4期463-468,共6页Journal of Quantum Optics

基　　金：福建省中青年教师科研项目(JAT160293)

摘　　要：构造一个简易的模型描述拓扑超导相中Majorana费米子的约瑟夫振荡,与平庸相中的约瑟夫振荡相比,周期增大一倍.其本质的原因是由于拓扑超导相中发生量子隧穿的Majorana费米子对的电量为e,而平庸相中量子隧穿的库珀对的电量为2e。A simple model is constructed to describe the Josephson oscillation of Majorana fermions in topological superconducting phase.Compared with the Josephson oscillation in the trivial superconducting phase,the oscillation periodicity doubles in the topological superconducting phase.The essential reason is that the electric quantity of the Majorana fermions pair of the quantum tunneling in the topological superconducting phase is e,and the electric quantity of Cooper pair of the quantum tunneling in the trivial phase is 2e.

关 键 词：拓扑超导 Majorana费米子 约瑟夫振荡 

分 类 号：O469[理学—凝聚态物理]