论文标题
微不足道和拓扑约瑟夫森连接的量子点奇偶校验效应
Quantum-Dot Parity Effects in Trivial and Topological Josephson Junctions
论文作者
论文摘要
约瑟夫森连接中的奇数量子点可以翻转传输阶段，从而产生π结。当连接夫妇拓扑超导体时，预计不会进行相位翻转。我们在全壳混合干涉仪中研究了这一效果，并使用栅极电压控制点结式和轴向磁通量，以控制从微不足道到拓扑超导性的过渡。在拓扑阶段，增强的零偏置电导和奇数奇偶校验的临界电流反映了限制自旋与铅中零能量模式的杂交。
An odd-occupied quantum dot in a Josephson junction can flip transmission phase, creating a π-junction. When the junction couples topological superconductors, no phase flip is expected. We investigate this and related effects in a full-shell hybrid interferometer, using gate voltage to control dot-junction parity and axial magnetic flux to control the transition from trivial to topological superconductivity. Enhanced zero-bias conductance and critical current for odd parity in the topological phase reflects hybridization of the confined spin with zero-energy modes in the leads.
