| 题名 | Characterizing quantum simulations with quantum tomography on a spin quantum simulator |
| 作者 | Zhao，Dafa1,2; Wei，Chao2,3  ; Xue，Shunzhong1,2; Huang，Yulei2,3; Nie，Xinfang2,3; Li，Jun2,3; Ruan，Dong1; Lu，Dawei2,3 ; Xin，Tao2,3; Long，Guilu1,4,5,6; Zhao，Dafa13,14; Wei，Chao14,15; Xue，Shunzhong13,14; Huang，Yulei14,15; Nie，Xinfang14,15; Li，Jun14,15; Ruan，Dong13; Lu，Dawei14,15; Xin，Tao14,15; Long，Guilu13,16,17,18
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| 通讯作者 | Lu，Dawei; Xin，Tao; Lu，Dawei; Xin，Tao |
| 发表日期 | 2021-05-01
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| DOI | |
| 发表期刊 | |
| ISSN | 2469-9926
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| EISSN | 2469-9934
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| 卷号 | 103期号:5 |
| 摘要 | Developments of quantum techniques have drastically improved the control ability of current quantum processors. Characterizing quantum simulations performed on these processors has become a vital topic in quantum information processing. Traditional characterizing techniques such as quantum process and state tomography fully characterize quantum simulations, but always with the exponentially increased resource cost, unfortunately. It may place their applications only in small-scale quantum systems. Meanwhile, many potential characterizing methods have been put forward in the past decades. In this work we experimentally test and compare different methods for characterizing quantum simulations of Ising Hamiltonians on the nuclear magnetic resonance (NMR) platform, including the recent quantum Hamiltonian tomography with polynomial complexity to estimate the generator of quantum simulations and nonrepetitive direct fidelity estimation with the Monte Carlo method to estimate the fidelity of dynamical states. We also experimentally estimate the parameters of Hamiltonian via full quantum process tomography and quantum state tomography for the comparison. These methods have merits and demerits in accuracy, the required resource, and prior knowledge. Our experiments test the performance of different methods while providing a beneficial reference for characterizing quantum simulations in the future. |
| 相关链接 | [Scopus记录] |
| 收录类别 | |
| 语种 | 英语
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| 学校署名 | 通讯
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| WOS记录号 | WOS:000647124900003
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| EI入藏号 | 20212010355474
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| EI主题词 | Hamiltonians
; Nuclear magnetic resonance
; Quantum chemistry
; Quantum optics
; Tomography
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| EI分类号 | Light/Optics:741.1
; Imaging Techniques:746
; Physical Chemistry:801.4
; Mathematical Statistics:922.2
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| ESI学科分类 | PHYSICS
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| Scopus记录号 | 2-s2.0-85105650494
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| 来源库 | Scopus
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| 引用统计 |
被引频次[WOS]：9
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| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/228451 |
| 专题 | 理学院_物理系 量子科学与工程研究院 |
| 作者单位 | 1.State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing,100084,China 2.Shenzhen Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 3.Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen, Guangdong,518055,China 4.Frontier Science Center for Quantum Information,Beijing,100084,China 5.Beijing National Research Center for Information Science and Technology,Beijing,100084,China 6.Beijing Academy of Quantum Information Sciences,Beijing,100193,China 7.State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing,100084,China 8.Shenzhen Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 9.Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen, Guangdong,518055,China 10.Frontier Science Center for Quantum Information,Beijing,100084,China 11.Beijing National Research Center for Information Science and Technology,Beijing,100084,China 12.Beijing Academy of Quantum Information Sciences,Beijing,100193,China 13.State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing,100084,China 14.Shenzhen Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 15.Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen, Guangdong,518055,China 16.Frontier Science Center for Quantum Information,Beijing,100084,China 17.Beijing National Research Center for Information Science and Technology,Beijing,100084,China 18.Beijing Academy of Quantum Information Sciences,Beijing,100193,China 19.State Key Laboratory of Low-Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing,100084,China 20.Shenzhen Institute for Quantum Science and Engineering,Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China 21.Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen, Guangdong,518055,China 22.Frontier Science Center for Quantum Information,Beijing,100084,China 23.Beijing National Research Center for Information Science and Technology,Beijing,100084,China 24.Beijing Academy of Quantum Information Sciences,Beijing,100193,China |
| 第一作者单位 | 物理系; 量子科学与工程研究院 |
| 通讯作者单位 | 物理系; 量子科学与工程研究院 |
| 推荐引用方式 GB/T 7714 |
Zhao，Dafa,Wei，Chao,Xue，Shunzhong,et al. Characterizing quantum simulations with quantum tomography on a spin quantum simulator[J]. Physical Review A,2021,103(5).
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| APA |
Zhao，Dafa.,Wei，Chao.,Xue，Shunzhong.,Huang，Yulei.,Nie，Xinfang.,...&Long，Guilu.(2021).Characterizing quantum simulations with quantum tomography on a spin quantum simulator.Physical Review A,103(5).
|
| MLA |
Zhao，Dafa,et al."Characterizing quantum simulations with quantum tomography on a spin quantum simulator".Physical Review A 103.5(2021).
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| 条目包含的文件 | 条目无相关文件。 | |||||
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