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苑震生

博士生导师
教师姓名:苑震生
教师英文名称:Zhen-Sheng Yuan
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学历:博士研究生毕业
办公地点:中国科学技术大学东区物质科研楼B楼
联系方式:Email: yuanzs@ustc.edu.cn; Office-tel: 0551-63600323
学位:博士
职称:教授
主要任职:Professor of Physics
毕业院校:Univerisity of Science and Technology of China
所属院系:物理学院
学科:物理学    
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论文成果
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Pure state tomography with adaptive Pauli measurements
发布时间:2022-12-18    点击次数:

发表刊物:JUSTC

摘要:Quantum state tomography provides a key tool for validating and fully exploiting quantum resources. However, current protocols of pure-state informationally-complete (PS-IC) measurement settings generally involve various multi-qubit gates or complex quantum algorithms, which are not practical for large systems. In this study, we present an adaptive approach to N -qubit pure-state tomography with Pauli measurements. First, projective measurements on each qubit in the Z-direction were implemented to determine the amplitude of each base of the target state. Then, a set of Pauli measurement settings was recursively deduced by the Z-measurement results, which can be used to determine the phase of each base. The number of required measurement settings is O(N) for certain quantum states, including cluster and W states. Finally, we numerically verified the feasibility of our strategy by reconstructing a 1-D chain state using a neural network algorithm.

合写作者:Xiangrui Meng et al.

论文类型:期刊论文

学科门类:理学

文献类型:J

卷号:52

期号:8

页面范围:1-1

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发表时间:2022-09-06

收录刊物:SCI

发布期刊链接:https://justc.ustc.edu.cn/en/article/doi/10.52396/JUSTC-2022-0037