| 奇相干光源的测量设备无关量子密钥分配研究 |
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| 引用本文： | 东晨,赵尚弘,张宁,董毅,赵卫虎,刘韵. 奇相干光源的测量设备无关量子密钥分配研究[J]. 物理学报, 2014, 63(20): 200304-200304. DOI: 10.7498/aps.63.200304 |
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| 作者姓名： | 东晨 赵尚弘 张宁 董毅 赵卫虎 刘韵 |
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| 作者单位： | 1. 空军工程大学信息与导航学院, 西安 710077;2. 西安通信学院信息安全系, 西安 710006;3. 61711部队, 喀什 844000 |
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| 基金项目： | 国家自然科学基金(批准号:61106068)资助的课题~~ |
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| 摘 要： | 刻画了奇相干光源的光子数分布特征,研究了奇相干光源下诱骗态测量设备无关量子密钥分配系统的密钥生成率与安全传输距离的关系,推导了奇相干光源下的计数率下界和误码率上界.仿真结果表明,奇相干光源光子数分布中多光子脉冲的比例低于弱相干光,可以有效提高诱骗态测量设备无关密钥分配系统的最大安全通信距离,为实用的量子密钥分配实验提供了重要的理论参数.
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| 关 键 词： | 奇相干态 测量设备无关量子密钥分配 统计波动 |
| 收稿时间： | 2014-03-16 |
Measurement-device-independent quantum key distribution with odd coherent state |
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| Dong Chen,Zhao Shang-Hong,Zhang Ning,Dong Yi,Zhao Wei-Hu,Liu Yun. Measurement-device-independent quantum key distribution with odd coherent state[J]. Acta Physica Sinica, 2014, 63(20): 200304-200304. DOI: 10.7498/aps.63.200304 |
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| Authors: | Dong Chen Zhao Shang-Hong Zhang Ning Dong Yi Zhao Wei-Hu Liu Yun |
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| Abstract: | Measurement-device-independent quantum key distribution (MDI-QKD) is immune to all the detection attacks, thus when it is combined with the decoy state method, the final key is unconditionally safe. In this paper, we propose to perform MDI-QKD with odd coherent state (OCS) and compare the results with weak coherent source scenario. Our simulation indicates that both the secure key rate and transmission distance can be improved evidently with OCS owing to the lower probability of multi-photon events of the OCS. Furthermore, we apply the finite key analysis to the decoy state MDI-QKD with OCS and obtain a practical key rate.
Keywords：odd coherent statemeasurement-device-independent quantum key distributionstatistical fluctuation |
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| Keywords: | odd coherent state measurement-device-independent quantum key distribution statistical fluctuation |
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