Photonics Research, Volume. 10, Issue 7, 1703(2022)

Measurement-device-independent quantum key distribution protocol with phase post-selection

Cong Jiang1,2, Xiao-Long Hu3, Zong-Wen Yu4, and Xiang-Bin Wang1,2,5,6,7、*
Author Affiliations
  • 1Jinan Institute of Quantum Technology, Jinan 250101, China
  • 2State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
  • 3School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China
  • 4Data Communication Science and Technology Research Institute, Beijing 100191, China
  • 5Shanghai Branch, CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China
  • 6Shenzhen Institute for Quantum Science and Engineering, and Physics Department, Southern University of Science and Technology, Shenzhen 518055, China
  • 7Frontier Science Center for Quantum Information, Beijing, China
  • show less
    Figures & Tables(7)
    Comparison of the key rates with this work and the former methods under the symmetric channel. The line of Ref. [38] is the key rates of the double-scanning four-intensity MDI-QKD protocol, and the line of Ref. [29] is the key rates of the original four-intensity MDI-QKD protocol. The experiment parameters are listed in Table 1.
    Comparison of the key rates with this work and the former methods under the symmetric channels. The experiment parameters here are similar to those in Fig. 1 except that we set N=109 and the misalignment-error probability ed=0.005.
    Comparison of the key rates with this work and the former methods under the asymmetric channels. The experiment parameters are listed in Table 1, and we set LAC−LBC=20 km.
    Comparison of the key rates with this work and the former methods under the asymmetric channels. The experiment parameters here are similar to those in Fig. 3 except that we set N=109 and the misalignment-error probability ed=0.005.
    Bell measurement setup of Charlie [21]. Here we take the polarization-encoding as an example to show the simulation method and the results of the phase-encoding are the same. BS, 50:50 beam splitter; PBS, polarization beam splitter; D1H,D1V,D2H,D2V, single-photon detectors.
    • Table 1. List of Experimental Parameters Used in Numerical Simulationsa

      View table
      View in Article

      Table 1. List of Experimental Parameters Used in Numerical Simulationsa

      pdedηdfαfξN
      1.0×1071.5%40.0%1.10.21.0×10101.0×1010
    • Table 2. Key Rates of Some Points in Fig. 1

      View table
      View in Article

      Table 2. Key Rates of Some Points in Fig. 1

      Methods30 km60 km90 km100 km
      This work2.24×1042.33×1051.28×1063.13×107
      Ref. [38]1.64×1041.55×1057.01×1071.29×107
      Ref. [29]1.33×1049.99×1062.17×1070
    Tools

    Get Citation

    Copy Citation Text

    Cong Jiang, Xiao-Long Hu, Zong-Wen Yu, Xiang-Bin Wang. Measurement-device-independent quantum key distribution protocol with phase post-selection[J]. Photonics Research, 2022, 10(7): 1703

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Quantum Optics

    Received: Oct. 11, 2021

    Accepted: Feb. 19, 2022

    Published Online: Jun. 28, 2022

    The Author Email: Xiang-Bin Wang (xbwang@mail.tsinghua.edu.cn)

    DOI:10.1364/PRJ.445617

    Topics