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arXiv · 2308.14037

Device-Independent Quantum Key Distribution Based on the Mermin-Peres Magic Square Game

Yi-Zheng Zhen·Yingqiu Mao·Yu-Zhe Zhang·Feihu Xu·Barry C. Sanders
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Abstract

Device-independent quantum key distribution (DIQKD) is information-theoretically secure against adversaries who possess a scalable quantum computer and who have supplied malicious key-establishment systems; however, the DIQKD key rate is currently too low. Consequently, we devise a DIQKD scheme based on the quantum nonlocal Mermin-Peres magic square game: our scheme asymptotically delivers DIQKD against collective attacks, even with noise. Our scheme outperforms DIQKD using the Clauser-Horne-Shimony-Holt game with respect to the number of game rounds, albeit not number of entangled pairs, provided that both state visibility and detection efficiency are high enough.

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Yi-Zheng Zhen, Yingqiu Mao, Yu-Zhe Zhang, Feihu Xu, Barry C. Sanders. 2023-08-27. Device-Independent Quantum Key Distribution Based on the Mermin-Peres Magic Square Game. https://doi.org/10.1103/physrevlett.131.080801

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