论文标题
拓扑超导电线中零能量末端模式的断层扫描
Tomography of zero-energy end modes in topological superconducting wires
论文作者
论文摘要
我们以旋转轨道耦合和磁场的拓扑杂交超导体 - 触发器导线表征了Majorana零模式，以概括性的bloch坐标$φ，θ，δ$来表征自旋轨道耦合和磁场，并在SU（2）旋转下分析其转换。我们表明，当自旋轨道耦合和磁场垂直时，$φ$和$δ$在适当的坐标系中是通用的。我们使用这些几何特性来解释约瑟夫森电流在两条电线的连接处的行为，并具有不同的磁场和/或自旋轨道耦合的方向。我们展示了如何从那里提取的角度$θ$，因此提供了Majorana模式的完整描述。
We characterize the Majorana zero modes in topological hybrid superconductor-semiconductor wires with spin-orbit coupling and magnetic field, in terms of generalized Bloch coordinates $φ, θ, δ$, and analyze their transformation under SU(2) rotations. We show that, when the spin-orbit coupling and the magnetic field are perpendicular, $φ$ and $δ$ are universal in an appropriate coordinate system. We use these geometric properties to explain the behavior of the Josephson current in junctions of two wires with different orientations of the magnetic field and/or the spin-orbit coupling. We show how to extract from there, the angle $θ$, hence providing a full description of the Majorana modes.
