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arXiv · 1608.00114

Measurement-device-independent quantum secret sharing

Xiuqing Yang·Kejin Wei·Haiqiang Ma·Shihai Sun·Hongwei Liu·Zuohan Li·Zhenqiang Yin·Yungang Du·Lingan Wu
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Abstract

Measurement-device-independent entanglement witness (MDI-EW) will always give an affirmative certification for witnessing entanglement with untrusted measurement apparatuses. Using the MDI-EW method, we propose a measurement-device-independent quantum secret sharing (MDI-QSS) protocol that Charlie can securely distribute a key between the two agents Alice and Bob. A tight bound for collective attacks can provide good bounds on the long-distance MDI-QSS with source flaws. Then we show through numerical simulations that using single-photon source a secure QSS over 136 km can be achieved.

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Xiuqing Yang, Kejin Wei, Haiqiang Ma, Shihai Sun, Hongwei Liu, Zuohan Li, Zhenqiang Yin, Yungang Du, Lingan Wu. 2016-07-30. Measurement-device-independent quantum secret sharing. https://arxiv.org/abs/1608.00114

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