Charged and uncharged vortices in quasiclassical theory
Charged and uncharged vortices in quasiclassical theory
复制标题
准经典理论中的带电和不带电涡旋
DOI：
10.1088/1742-6596/969/1/012054
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Kato Yusuke
中科院分区：
文献类型：
--
作者：
Masaki Yusuke;Kato Yusuke
超导涡旋的荷电效应对超导涡旋的输运性质有着重要的影响。手征p波超导体，被称为拓扑超导体（SC），在涡旋核中具有Majorana费米子，并且已经使用微观Bogoliubov（de Gennes）（BdG）理论研究了充电效应。根据基于BdG理论的计算，一种类型的涡旋以及s波SC的涡旋是带电的，而另一种是不带电的。我们在手征p波SC中使用增广的准经典理论再现了这种有趣的充电效应，通过这种理论，我们可以在准经典近似下处理粒子-空穴不对称性。
The charging effect of a superconducting vortex core is very important for transport properties of superconducting vortices. The chiral p-wave superconductor, known as a topological superconductor (SC), has a Majorana fermion in a vortex core and the charging effect has been studied using microscopic Bogoliubov {de Gennes (BdG) theory. According to calculations based on the BdG theory, one type of the vortex is charged as well as the vortex of the s-wave SC, while the other is uncharged. We reproduce this interesting charging effect using an augmented quasiclassical theory in chiral p-wave SCs, by which we can deal with particle-hole asymmetry in the quasiclassical approximation.