Laser & Optoelectronics Progress, Volume. 61, Issue 13, 1327001(2024)

Novel Round-Robin Differential Phase Shift Quantum Key Distribution

Yuting Lu, Shengmei Zhao*, and Qianping Mao
Author Affiliations
  • Nanjing University of Posts and Telecommunications, School of Communication and Information Engineering, Nanjing 210003, Jiangsu , China
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    Figures & Tables(7)
    Protocol device of NRRDPS-QKD. (a) Schematic diagram of NRRDPS-QKD; (b) schematic diagram of pulse sequence interference process
    Schematic diagram of receiving delay equivalence of the receiving pulse train
    Key rate comparison curve
    The key rate comparison of the RRDPS-QKD protocol and NRRDPS-QKD protocol under different pulse lengths
    Comparison between NRRDPS-QKD protocol and the infinite decoy state BB84 protocol under different edwhen L=64. (a) Comparison between NRRDPS-QKD protocol and the infinite decoy state BB84 protocol at ed=3.3%; (b) comparison between NRRDPS-QKD protocol and the infinite decoy state BB84 protocol at ed=9.5%
    • Table 1. Simulation key distribution experiment results

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      Table 1. Simulation key distribution experiment results

      ProtocolLs=10 kms=40 kms=70 kms=150 km
      The length of the prepared keysKey rate /10-2The length of the prepared keysKey rate /10-3The length of the prepared keysKey rate /10-4The length of the prepared keys
      RRDPS-QKD828181.4097183.591839.156
      1628241.4127203.61798.956
      3228111.4057223.611819.056
      6428261.4137213.6051849.26
      NRRDPS-QKD82836(odd)+2844(even)2.84714(odd)+725(even)7.195178(odd)+177(even)17.756(odd)+6(even)
      162841(odd)+2839(even)2.84722(odd)+715(even)7.185176(odd)+179(even)17.756(odd)+6(even)
      322836(odd)+2840(even)2.838724(odd)+725(even)7.245173(odd)+170(even)17.156(odd)+6(even)
      642864(odd)+2844(even)2.854721(odd)+735(even)7.28175(odd)+181(even)17.86(odd)+6(even)
    • Table 2. Basic parameters of simulation

      View table

      Table 2. Basic parameters of simulation

      Pded /%e0ηd /%fα /(dB/km)
      1.7×10-63.30.54.51.160.2
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    Yuting Lu, Shengmei Zhao, Qianping Mao. Novel Round-Robin Differential Phase Shift Quantum Key Distribution[J]. Laser & Optoelectronics Progress, 2024, 61(13): 1327001

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    Paper Information

    Category: Quantum Optics

    Received: Oct. 23, 2023

    Accepted: Nov. 27, 2023

    Published Online: Jul. 17, 2024

    The Author Email: Shengmei Zhao (zhaosm@njupt.edu.cn)

    DOI:10.3788/LOP232342

    CSTR:32186.14.LOP232342

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