论文标题
基于Weyl Semimetal Mote2的通量可调超导量子电路
A flux tunable superconducting quantum circuit based on Weyl semimetal MoTe2
论文作者
论文摘要
在许多研究领域，Weyl半法具有外来拓扑特性引起了很大的关注。当与S波超导体结合使用时，可以通过其拓扑表面通道来携带超电流，从而形成接头模仿Majorana结合状态的行为。在这里，我们提出了一个类似Transmon的超导量子互力互力装置（Squid），由Weyl Semimetal TD-Mote2制成的侧连接和氮化氮化物（NBN）组成。鱿鱼与由钼rhenium（更多）制成的读出腔，其高力的反应揭示了构成约瑟夫森连接（JJS）的存在。电路的回路几何形状使读取腔的谐振频率通过磁通量调节。我们演示了由Mote2制成的JJ和基于Weyl材料的通量式透射的透射型电路。我们的研究提供了一个平台，可以利用基于鱿鱼的量子电路中的拓扑材料，用于量子信息处理中的潜在应用。
Weyl semimetals for their exotic topological properties have drawn considerable attention in many research fields. When in combination with s-wave superconductors, the supercurrent can be carried by their topological surface channels, forming junctions mimic the behavior of Majorana bound states. Here, we present a transmon-like superconducting quantum intereference device (SQUID) consists of lateral junctions made of Weyl semimetal Td-MoTe2 and superconducting leads niobium nitride (NbN). The SQUID is coupled to a readout cavity made of molybdenum rhenium (MoRe), whose response at high power reveal the existence of the constituting Josephson junctions (JJs). The loop geometry of the circuit allows the resonant frequency of the readout cavity to be tuned by the magnetic flux. We demonstrate a JJ made of MoTe2 and a flux-tunable transmon-like circuit based on Weyl materials. Our study provides a platform to utilize topological materials in SQUID-based quantum circuits for potential applications in quantum information processing.
