报告题目：Superconducting Quantum Circuits: Hardware Design, Fabrication, and Key Device Technologies

报告人：赵杰 副研究员 （南京大学）

报告时间：2026年9月9日（周三） 10：30-11：30

报告地点：北洋园校区49教410 室

报告摘要：

Superconducting quantum circuits represent one of the most promising platforms for scalable quantum information processing. However, realizing high-performance quantum processors requires pushing the qubit coherence, control conveniences, and readout performance simultaneously. In this talk, I will present an overview of the design and fabrication workflow for superconducting quantum circuits, highlighting the primary physical and technological challenges encountered during hardware realization. Specifically, I will share our recent progress in developing key device components and microfabrication techniques: 1. Airbridge technology for interconnects across discontinuous ground planes and parasitic mode suppression. 2. The tunable coupling scheme between transmon qubits and transmission lines for flexible interaction control. 3. High-fidelity readout components, including Josephson parametric amplifiers (JPAs/TWPAs) and Purcell filters engineered to protect qubit lifetimes. By bridging foundational fabrication processes with customized functional device architectures, these efforts provide practical insights into building higher-performance, scalable superconducting quantum hardware.

报告人简介：

赵杰，2010年于南京大学物理学院获得学士学位，2016年于南京大学物理学院获得博士学位，2017年至2020年于中国科学技术大学微观磁共振实验室开展博士后研究，2020至今任南京大学物理学院副研究员。在研究生涯中，搭建过无尘室样品制备平台，构建过超导量子比特测试系统，维修过制冷机，维护过超高真空设备，发表过论文若干。目前研究兴趣集中于超导量子器件物理，开放量子系统，以及基于超导量子电路的量子模拟和量子计算。