【摘 要】
：
Measurement-device-independent quantum cryptographic conferencing (MDI-QCC) protocol suggests an important scheme for practical multiparty quantum communication
【机 构】
：
Henan Key Laboratory of Quantum Information and Cryptography, Zhengzhou 450001;Synergetic Innovation
论文部分内容阅读
Measurement-device-independent quantum cryptographic conferencing (MDI-QCC) protocol suggests an important scheme for practical multiparty quantum communication.As far as we know,MDI-QCC or MDI-quantum key distribution protocols always assume that the decoy state strategies used at each user’s side are the same.In this study,to mitigate the system complexity and to improve the performance of MDI-QCC protocol in the finite-key case,we propose an asymmetric decoy state method for MDI-QCC protocol,and present security analysis and numerical simulations.From numerical simulations,our protocol can achieve better performance in the finite-key case.That is,with a finite data size of 1011,it can achieve nonzero secret key rate over 43.6km.
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