NMRCloudQ： a quantum cloud experience on a nuclear magnetic resonance quantum computer  

作　　者：Tao Xin Shilin Huang Sirui Lu Keren Li Zhihuang Luo Zhangqi Yin Jun Li Dawei Lu Guilu Long Bei Zeng 

机构地区：[1]Department of Physics, Tsinghua University, Beijing 100084, China [2]Center for Quantum Information, Institute for Interdiscriplinary Information Sciences, Tsinghua University, Belting 100084, China [3]Beijing Computational Science Research Center, Beijing 100193, China [4]Institute for Quantum Computing, University of Waterloo, waterloo N2L 3C1, Ontario, Canada [5]Department of Physics and Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China [6]The Innovative Center of Quantum Matter, Beijing 100084, China [7]Department of Mathematics and Statistics, University of Guelph, Guelph N1C 2W1, Ontario, Canada

出　　处：《Science Bulletin》2018年第1期17-23,共7页科学通报（英文版）

基　　金：the National Natural Science Foundation of China(11175094);National Basic Research Program of China(2015CB921002);supported by the National Natural Science Foundation of China(61771278);supported by the National Basic Research Program of China(2014CB921403,2016YFA0301201,2014CB848700 and 2013CB921800);National Natural Science Foundation of China(11421063,11534002,11375167 and 11605005);the National Science Fund for Distinguished Young Scholars(11425523);NSAF(U1530401);Natural Sciences and Engineering Research Council of Canada(NSERC);Canadian Institute for Advanced Research(CIFAR);Chinese Ministry of Education(20173080024)

摘　　要：Cloud-based quantum computing is anticipated to be the most useful and reachable form for public users to experience with the power of quantum. As initial attempts, IBM Q has launched influential cloud services on a superconducting quantum processor in 2016, but no other platforms has followed up yet. Here,we report our new cloud quantum computing service – NMRCloud Q(http://nmrcloudq.com/zh-hans/),where nuclear magnetic resonance, one of the pioneer platforms with mature techniques in experimental quantum computing, plays as the role of implementing computing tasks. Our service provides a comprehensive software environment preconfigured with a list of quantum information processing packages,and aims to be freely accessible to either amateurs that look forward to keeping pace with this quantum era or professionals that are interested in carrying out real quantum computing experiments in person. In our current version, four qubits are already usable with in average 99.10% single-qubit gate fidelity and 97.15% two-qubit fidelity via randomized benchmaking tests. Improved control precisions as well as a new seven-qubit processor are also in preparation and will be available later.Cloud-based quantum computing is anticipated to be the most useful and reachable form for public users to experience with the power of quantum. As initial attempts, IBM Q has launched influential cloud services on a superconducting quantum processor in 2016, but no other platforms has followed up yet. Here,we report our new cloud quantum computing service – NMRCloud Q（http：//nmrcloudq.com/zh-hans/）,where nuclear magnetic resonance, one of the pioneer platforms with mature techniques in experimental quantum computing, plays as the role of implementing computing tasks. Our service provides a comprehensive software environment preconfigured with a list of quantum information processing packages,and aims to be freely accessible to either amateurs that look forward to keeping pace with this quantum era or professionals that are interested in carrying out real quantum computing experiments in person. In our current version, four qubits are already usable with in average 99.10% single-qubit gate fidelity and 97.15% two-qubit fidelity via randomized benchmaking tests. Improved control precisions as well as a new seven-qubit processor are also in preparation and will be available later.

关 键 词：Quantum cloud Nuclear magnetic resonance Gradient ascent pulse engineering Randomized benchmarking 

分 类 号：TP38[自动化与计算机技术—计算机系统结构]