Memory-assisted measurement-device-independent quantum secret sharing
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909211253800960 |
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| author | Zhang, Cheng Zhang, Qi Zhong, Wei Du, Ming-Ming Shen, Shu-Ting Li, Xi-Yun Zhang, An-Lei Zhou, Lan Sheng, Yu-Bo |
| author_facet | Zhang, Cheng Zhang, Qi Zhong, Wei Du, Ming-Ming Shen, Shu-Ting Li, Xi-Yun Zhang, An-Lei Zhou, Lan Sheng, Yu-Bo |
| contents | Measurement-device-independent quantum secret sharing (MDI-QSS) can eliminate all the security loopholes associated with imperfect measurement devices and greatly enhance QS's security under practical experimental condition. MDI-QSS requires each communication user to send single photon to the measurement party for the coincident measurement. However, the unsynchronization of the transmitted photons greatly limits MDI-QSS's practical performance.In the paper, we propose a high-efficient quantum memory (QM)-assisted MDI-QSS protocol, which employs the QM-assisted synchronization of three heralded single-photon sources to efficiently generate three simultaneous single-photon states. The QM constructed with all-optical, polarization-insensitive storage loop has superior performance in terms of bandwidth, storage efficiency, and noise resistance, and is feasible under current experiment conditions. Combining with the decoy-state method, we perform the numerical simulation of the secure key rate in the symmetric model without considering the finite-size effect. The simulation results show that our QM-assisted MDI-QSS protocol exhibit largely improved secure key rate and maximal photon transmission distance compared with all existing MDI-QSS protocols without QM. Our protocol provides a promising way for implementing the high-efficient long-distance MDI-QSS in the near future. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_16970 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Memory-assisted measurement-device-independent quantum secret sharing Zhang, Cheng Zhang, Qi Zhong, Wei Du, Ming-Ming Shen, Shu-Ting Li, Xi-Yun Zhang, An-Lei Zhou, Lan Sheng, Yu-Bo Quantum Physics Measurement-device-independent quantum secret sharing (MDI-QSS) can eliminate all the security loopholes associated with imperfect measurement devices and greatly enhance QS's security under practical experimental condition. MDI-QSS requires each communication user to send single photon to the measurement party for the coincident measurement. However, the unsynchronization of the transmitted photons greatly limits MDI-QSS's practical performance.In the paper, we propose a high-efficient quantum memory (QM)-assisted MDI-QSS protocol, which employs the QM-assisted synchronization of three heralded single-photon sources to efficiently generate three simultaneous single-photon states. The QM constructed with all-optical, polarization-insensitive storage loop has superior performance in terms of bandwidth, storage efficiency, and noise resistance, and is feasible under current experiment conditions. Combining with the decoy-state method, we perform the numerical simulation of the secure key rate in the symmetric model without considering the finite-size effect. The simulation results show that our QM-assisted MDI-QSS protocol exhibit largely improved secure key rate and maximal photon transmission distance compared with all existing MDI-QSS protocols without QM. Our protocol provides a promising way for implementing the high-efficient long-distance MDI-QSS in the near future. |
| title | Memory-assisted measurement-device-independent quantum secret sharing |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2405.16970 |