论文标题
三端混合装置的局部和非本地微波阻抗
Local and Non-local Microwave Impedance of a Three-Terminal Hybrid Device
论文作者
论文摘要
我们报告了带有三个末端（3T）的超导体 - 触发器混合纳米线装置的微波阻抗测量值。我们的技术利用传输线谐振器在快速时间尺度上以及跨越0.3-7 GHz的频率上获取设备的9个复合散射矩阵参数（S -Parameter）。通过与DC-Transport测量值进行比较，我们研究了该技术在探测3T设备的局部和非本地响应的实用性，在这些设备中，电容和归纳贡献可以发挥作用。这样的测量需要仔细解释，但可能用于辨别由无序引起的微不足道状态的真正主要零模式。
We report microwave impedance measurements of a superconductor-semiconductor hybrid nanowire device with three terminals (3T). Our technique makes use of transmission line resonators to acquire the nine complex scattering matrix parameters (S-parameters) of the device on fast timescales and across a spectrum of frequencies spanning 0.3 - 7 GHz. Via comparison with dc-transport measurements, we examine the utility of this technique for probing the local and non-local response of 3T devices where capacitive and inductive contributions can play a role. Such measurements require careful interpretation but may be of use in discerning true Majorana zero modes from trivial states arising from disorder.
