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Efficient and secure quantum secret sharing for eight users
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DOI：10.1103/PhysRevResearch.6.033036.png)
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Quantum secret sharing (QSS) has emerged as a promising avenue for storing secret with quantum-enhanced security. However, practical applications are hindered by the challenge for simultaneously implementing highefficiency, high-security, and high-flexibility QSS with multiple users. Here we present an efficient, secure, and flexible QSS involving eight users with a continuous-variable eight-partite bound entanglement (BE) state, where only two nondegenerated optical parameter amplifiers are required. Such abilities are attributed to the generation of the eight-partite BE state with precise phase controlling systems and a large entanglement network, and fiber distribution with polarization-division multiplexing. In the QSS, a higher key rate can be demonstrated, when a secret is extracted through flexible combinations of more collaborative users. Our system may pave the way for the spatially separated multiuser quantum communications, while minimizing quantum hardware.
Keyword:
KEY DISTRIBUTION
TELEPORTATION
期刊
IF:
4.2
论文数:
7.6K
被引数:
2.7W
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分享收藏分享收藏分享收藏High performance frame synchronization for continuous variable quantum key distribution systems.png)
OPTICS EXPRESS
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OPTICS EXPRESSIF3.3
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