超导量子计算门操作及其保真度测定的基本理论  

THE BASIC THEORY OF SUPERCONDUCTING QUANTUM COMPUTING GATE OPERATION AND ITS FIDELITY MEASUREMENT

作　　者：宿非凡 杨钊华 邓永和[5] SU Feifan;YANG Zhaohua;DENG Yonghe;无(China Electronics Information Industry Group Great Wall Laboratory,Changsha,Hunan 410205;Tianjin Advanced Technology Research Institute,Tianjin 300459;Hefei National Laboratory,Hefei,Anhui 230094;Institute of Physics,Chinese Academy of Science,Beijing 100190;Hunan Institute of Engineering,Xiangtan Hunan,411104)

机构地区：[1]中国电子信息产业集团长城实验室,湖南长沙410205 [2]天津先进技术研究院,天津300459 [3]合肥国家实验室,安徽合肥230094 [4]中国科学院物理研究所,北京100190 [5]湖南工程学院,湖南湘潭411104

出　　处：《物理与工程》2024年第3期100-108,共9页Physics and Engineering

摘　　要：对于已有的超导量子比特器件,在进行系统标定之后构建相应的高保真度门操作是实现量子计算的关键步骤。作为“物理前沿介绍——超导量子计算”系列的第五篇,本文系统讨论通过微波脉冲构建超导量子比特门操作的物理图景以及基本方法,给出了一套单比特门操作的构建流程,并对门操作保真度的测定以及优化发展作延伸讨论。本文旨在帮助广大高校物理专业教师、高年级本科生、研究生以及对超导量子计算感兴趣的理工科背景读者系统了解超导量子比特门构建与门操作保真度测量与优化的整个基本过程。For the existing superconducting qubit devices,constructing the corresponding high-fidelity gate operation after system calibration is a key step to realize quantum computing.As the fifth chapter of the series of“Introduction to physics frontier—superconducting quantum computing”,this paper systematically discusses the physical picture and basic method of constructing superconducting qubit gate operation through microwave pulse,gives a set of construction process of single bit gate operation,and extends the measurement and optimization development of gate operation fidelity.This paper aims to help the physics teachers,senior undergraduates,graduate students,and science and engineering backgrounds interested in superconducting quantum computing readers to systematically understand the whole basic process of superconducting qubit gate construction and gate operation fidelity measurement and optimization.

关 键 词：超导量子比特 门操作 保真度 

分 类 号：O413[理学—理论物理]