Acta Optica Sinica, Volume. 42, Issue 3, 0327014(2022)

Performance of Collective Measurement to Estimate Quantum Coherence

Yuan Yuan1,2,3, Yueping Niu1, Shangqing Gong1, and Guoyong Xiang2,3、*
Author Affiliations
  • 1School of Physics, East China University of Science and Technology, Shanghai 200237, China
  • 2Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China
  • 3Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China;
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    Figures & Tables(4)
    Simulation results of effect of detection efficiency on coherence estimation error of qubit. (a) Error in l1norm coherence estimation with detection efficiency of 90%; (b) error in l1norm coherence estimation with detection efficiency of 60%; (c) difference of l1norm coherence estimation error for different detection efficiency; (d) effect of detection efficiency on relative entropy coherence estimation error
    Simulation results of effect of detection efficiency on coherence estimation error of qutrit
    Simulation results of coherence estimation error varying with resource number obtained by different measurement schemes. (a) Estimation error of l1 norm coherence of qubit state with θ=15°; (b) estimation error of relative entropy coherence of qubit state with θ=30°
    Simulation results of effect of change in resource number on l1 norm coherence estimation error of qutrit
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    Yuan Yuan, Yueping Niu, Shangqing Gong, Guoyong Xiang. Performance of Collective Measurement to Estimate Quantum Coherence[J]. Acta Optica Sinica, 2022, 42(3): 0327014

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    Paper Information

    Category: Quantum Optics

    Received: Sep. 1, 2021

    Accepted: Dec. 20, 2021

    Published Online: Jan. 24, 2022

    The Author Email: Xiang Guoyong (gyxiang@ustc.edu.cn)

    DOI:10.3788/AOS202242.0327014

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