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Optical Frequency Comb-Based Continuous-Variable Quantum Secret Sharing Scheme

Author

Listed:
  • Runsheng Peng

    (School of Automation, Central South University, Changsha 410083, China)

  • Yijun Wang

    (School of Automation, Central South University, Changsha 410083, China)

  • Hang Zhang

    (School of Automation, Central South University, Changsha 410083, China)

  • Yun Mao

    (Provincial Key Laboratory of Informational Service for Rural Area of Southwestern Hunan, College of Information Science and Engineering, Shaoyang University, Shaoyang 422000, China)

  • Ying Guo

    (School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China)

Abstract

Quantum secret sharing (QSS) faces inherent limitations in scaling to multi-user networks due to excess noise introduced by highly asymmetric beam splitters (HABSs) in chain-structured topologies. To overcome this challenge, we propose an optical frequency comb-based continuous-variable QSS (OFC CV-QSS) scheme that establishes parallel frequency channels between users and the dealer via OFC-generated multi-wavelength carriers. By replacing the chain-structured links with dedicated frequency channels and integrating the Chinese remainder theorem (CRT) with a decentralized architecture, our design eliminates excess noise from all users using HABS while providing mathematical- and physical-layer security. Simulation results demonstrate that the scheme achieves a more than 50% improvement in maximum transmission distance compared to chain-based QSS, with significantly slower performance degradation as users scale to 20. Numerical simulations confirm the feasibility of this theoretical framework for multi-user quantum networks, offering dual-layer confidentiality without compromising key rates.

Suggested Citation

  • Runsheng Peng & Yijun Wang & Hang Zhang & Yun Mao & Ying Guo, 2025. "Optical Frequency Comb-Based Continuous-Variable Quantum Secret Sharing Scheme," Mathematics, MDPI, vol. 13(15), pages 1-14, July.
    • Handle: RePEc:gam:jmathe:v:13:y:2025:i:15:p:2455-:d:1713216
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    References listed on IDEAS

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    1. Alfredo Rueda & Florian Sedlmeir & Madhuri Kumari & Gerd Leuchs & Harald G. L. Schwefel, 2019. "Publisher Correction: Resonant electro-optic frequency comb," Nature, Nature, vol. 569(7758), pages 11-11, May.
    2. Alfredo Rueda & Florian Sedlmeir & Madhuri Kumari & Gerd Leuchs & Harald G. L. Schwefel, 2019. "Resonant electro-optic frequency comb," Nature, Nature, vol. 568(7752), pages 378-381, April.
    3. Daryl T. Spencer & Tara Drake & Travis C. Briles & Jordan Stone & Laura C. Sinclair & Connor Fredrick & Qing Li & Daron Westly & B. Robert Ilic & Aaron Bluestone & Nicolas Volet & Tin Komljenovic & Li, 2018. "An optical-frequency synthesizer using integrated photonics," Nature, Nature, vol. 557(7703), pages 81-85, May.
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