Secure Quantum Secret Sharing without Signal Disturbance Monitoring

Abstract

Quantum secret sharing (QSS) is an essential primitive for the future quantum internet, which promises secure multiparty communication. However, developing a large-scale QSS network is a huge challenge due to the channel loss and the requirement of multiphoton interference or high-fidelity multipartite entanglement distribution. Here, we propose a three-user QSS protocol without monitoring signal disturbance, which is capable of ensuring the unconditional security. The final key rate of our protocol can be demonstrated to break the Pirandola-Laurenza-Ottaviani-Banchi bound of quantum channel and its simulated transmission distance can approach over 600 km using current techniques. Our results pave the way to realizing high-rate and large-scale QSS networks.

arXiv comment8 pages, 5 figures

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Cited by in corpus (16)

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• Experimental quantum secret sharing based on phase encoding of coherent states
• Experimental quantum advantage with quantum coupon collector
• Breaking Rate-Distance Limitation of Measurement-Device-Independent Quantum Secret Sharing
• Device-independent quantum secret sharing with noise preprocessing and postselection
• Long-distance twin-field quantum key distribution with entangled sources
• Device-Independent Quantum Key Distribution Using Random Quantum States
• Scalable High-Rate Twin-Field Quantum Key Distribution Networks without Constraint of Probability and Intensity
• Experimental coherent-state quantum secret sharing with finite pulses
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