Home > Archive>Volume 17, Issue 10, 2021 >636-640. DOI:https://doi.org/10.1007/s11801-021-0197-0
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Four-state reference-frame-independent quantum key distribution using heralded pair-coherent sources with source flaws
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1.NARI Group Corporation, (State Grid Electric Power Research Institute), Nanjing 211106, China;2. NRGD Quantum Technology Co., Ltd., Nanjing 211106, China;3. School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China

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    Abstract:

    We propose a four-state reference-frame-independent quantum key distribution (RFI-QKD) protocol with the heralded pair-coherent source (HPCS). We investigate the performance of the proposed protocol and simulation results show that our protocol can achieve a high key generation rate in long-distance transmission, taking source flaws and statistical fluctuations into consideration. Although fewer states are used, this protocol not only has a higher key generation rate at the same transmission distance but also a longer transmission distance with the same secure communication compared with the original six-state RFI-QKD protocol using the weak coherent source (WCS).

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FENG Bao, ZHAO Ziyan, YANG Shunyu, DOU Tianqi, LI Zhenhua, WANG Jipeng, SUN Zhongqi, ZHOU Fen, HAN Yanxin, HUANG Yuqing, MA Haiqiang. Four-state reference-frame-independent quantum key distribution using heralded pair-coherent sources with source flaws[J]. Optoelectronics Letters,2021,17(10):636-640

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History
  • Received:December 11,2020
  • Revised:February 02,2021
  • Online: September 17,2021
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