学　术

    由基础与前沿研究院量子信息研究中心主办的“信息与量子学术沙龙”第5期邀请到杭州阿里巴巴量子实验室张耕砚博士来校作学术交流。具体安排如下，欢迎师生们参加。

　　主讲人：张耕砚  博士 (杭州阿里巴巴量子实验室)

　　时　间：2018年11月23日（周五），上午10:30

　　主　题：Tunable coupling and its applications in circuit quantum electrodynamics

　　地　点：沙河校区通信楼816会议室

　　主讲人简介：

　　Gengyan Zhang (张耕砚) is a Quantum Scientist at Alibaba Quantum Lab. He received his Bachelor and Master degrees from Tsinghua University, before he went to Princeton University in 2011. During his PhD program he worked on tunable coupling mechanism and its experimental realization in circuit quantum electrodynamics. His research demonstrated the application of tunable coupling devices in performance optimization and their potential for quantum computation.

　　报告摘要：

　　Circuit quantum electrodynamics (cQED) uses superconducting circuit elements as its building blocks for controllable quantum systems and has become a promising experimental platform for quantum computation and quantum simulation. The ability to tune the coupling rate between circuit elements extends the controllability and flexibility of cQED devices and can be utilized to improve device performance. In this talk I will present the implementation and application of tunable coupling devices in cQED. The tunability originates from the basic principles of quantum superposition and interference, and unwanted interactions can be suppressed by destructive interference. Following this principle, we design and conduct two experiments that demonstrate the utility of tunable coupling for better device performances in quantum information processing. Those devices provide flexible and promising building blocks for cQED systems.

　　　　　　　　　　　　　　　　　　　　　　　基础与前沿研究院

　　　　　　　　　　　　　　　　　　　　　　　　2018年11月21日