| 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 |
| Four-state reference-frame-independent quantum key distribution using heralded pair-coherent sources with source flaws |
| Author Name | Affiliation | | FENG Bao | NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing 211106, China
NRGD Quantum Technology Co., Ltd., Nanjing 211106, China | | ZHAO Ziyan | NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing 211106, China
NRGD Quantum Technology Co., Ltd., Nanjing 211106, China | | YANG Shunyu | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | DOU Tianqi | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | LI Zhenhua | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | WANG Jipeng | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | SUN Zhongqi | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | ZHOU Fen | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | HAN Yanxin | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | HUANG Yuqing | School of Science and State Key Laboratory of Information Photonics and Optical Communications, Beijing Univer-sity of Posts and Telecommunications, Beijing 100876, China | | MA Haiqiang | 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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