中国物理B ›› 2022, Vol. 31 ›› Issue (10): 100302-100302.doi: 10.1088/1674-1056/ac70bb

• GENERAL • 上一篇    下一篇

Measurement-device-independent quantum secret sharing with hyper-encoding

Xing-Xing Ju(居星星)1,3, Wei Zhong(钟伟)3, Yu-Bo Sheng(盛宇波)2,3, and Lan Zhou(周澜)1,†   

  1. 1. College of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    2. College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    3. Institute of Quantum Information and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • 收稿日期:2022-03-25 修回日期:2022-05-10 出版日期:2022-10-16 发布日期:2022-09-16
  • 通讯作者: Lan Zhou E-mail:zhoul@njupt.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11974189 and 12175106).

Measurement-device-independent quantum secret sharing with hyper-encoding

Xing-Xing Ju(居星星)1,3, Wei Zhong(钟伟)3, Yu-Bo Sheng(盛宇波)2,3, and Lan Zhou(周澜)1,†   

  1. 1. College of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    2. College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China;
    3. Institute of Quantum Information and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2022-03-25 Revised:2022-05-10 Online:2022-10-16 Published:2022-09-16
  • Contact: Lan Zhou E-mail:zhoul@njupt.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11974189 and 12175106).

摘要: Quantum secret sharing (QSS) is a typical multi-party quantum communication mode, in which the key sender splits a key into several parts and the participants can obtain the key by cooperation. Measurement-device-independent quantum secret sharing (MDI-QSS) is immune to all possible attacks from measurement devices and can greatly enhance QSS's security in practical applications. However, previous MDI-QSS's key generation rate is relatively low. Here, we adopt the polarization-spatial-mode hyper-encoding technology in the MDI-QSS, which can increase single photon's channel capacity. Meanwhile, we use the cross-Kerr nonlinearity to realize the complete hyper-entangled Greenberger—Horne—Zeilinger state analysis. Both above factors can increase MDI-QSS's key generation rate by about 103. The proposed hyper-encoded MDI-QSS protocol may be useful for future multiparity quantum communication applications.

关键词: measurement-device-independent quantum secret sharing, hyper-encoding technology, cross-Kerr nonlinearity, hyper-entangled Greenberger—Horne—Zeilinger state analysis

Abstract: Quantum secret sharing (QSS) is a typical multi-party quantum communication mode, in which the key sender splits a key into several parts and the participants can obtain the key by cooperation. Measurement-device-independent quantum secret sharing (MDI-QSS) is immune to all possible attacks from measurement devices and can greatly enhance QSS's security in practical applications. However, previous MDI-QSS's key generation rate is relatively low. Here, we adopt the polarization-spatial-mode hyper-encoding technology in the MDI-QSS, which can increase single photon's channel capacity. Meanwhile, we use the cross-Kerr nonlinearity to realize the complete hyper-entangled Greenberger—Horne—Zeilinger state analysis. Both above factors can increase MDI-QSS's key generation rate by about 103. The proposed hyper-encoded MDI-QSS protocol may be useful for future multiparity quantum communication applications.

Key words: measurement-device-independent quantum secret sharing, hyper-encoding technology, cross-Kerr nonlinearity, hyper-entangled Greenberger—Horne—Zeilinger state analysis

中图分类号:  (Quantum error correction and other methods for protection against decoherence)

  • 03.67.Pp
03.67.Hk (Quantum communication) 03.65.Ud (Entanglement and quantum nonlocality)