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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，并采用标准误差方法分析了有限长度密钥下统计波动对参数估计的影响. 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
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 state /
- measurement-device-independent quantum key distribution /
- statistical fluctuation
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[2] Shor P W, Preskill J 2000 Phys. Rev. Lett. 85 441
[3] Mayers D 2001 J. ACM 48 351
[4] Gottesman D, Lo H K, Lutkenhaus N, Preskill J 2004 Quantum Infor. Comput. 4 325
[5] Zhou Y Y, Zhou X T, Tian P G, Wang Y J 2013 Chin. Phys. B 22 010305
[6] Sheng Y B, Zhou L, Cheng W W, Gong L Y, Wang L, Zhan S M 2013 Chin. Phys. B 22 030314
[7] Jiao R Z, Zhang W H 2009 Acta Phys. Sin. 58 2189 (in Chinese) [焦荣珍, 张文瀚 2009 58 2189]
[8] Dong C, Zhao S H, Zhao W H, Shi L, Dong Y 2014 Acta Phys. Sin. 63 030302 (in Chinese) [东晨, 赵尚弘, 赵卫虎, 石磊, 董毅 2014 63 030302]
[9] Wang J D, Qin X J, Wei Z J, Liu X B, Liao C J, Liu S H 2010 Acta Phys. Sin. 59 281 (in Chinese) [王金东, 秦晓娟, 魏正军, 刘小宝, 廖常俊, 刘颂豪 2010 59 281]
[10] Brassard G, Lutkenhaus N, Mor T, Sanders B C 2000 Phys. Rev. Lett. 85 1330
[11] Sun S H, Liang L M 2012 Appl. Phys. Lett. 101 071107
[12] Makarov V, Skaar J 2008 Quantum Infor. Comput. 86 622
[13] Zhao Y, Fung C H F, Qi B, Chen C, Lo H K 2008 Phys. Rev. A 78 042333
[14] Makarov V 2009 New J. Modern Opt. 11 065003
[15] Lo H K, Curty M, Qi B 2012 Phys. Rev. Lett. 108 130503
[16] Hwang W Y 2003 Phys. Rev. Lett. 91 057901
[17] Ma X F, Fung C H F, Razavi M 2012 Phys. Rev. A 86 052305
[18] Wang X B 2013 Phys. Rev. A 87 012320
[19] Sun S H, Gao M, Li C Y, Liang L M 2013 Phys. Rev. A 87 052329
[20] Liu Y, Chen T Y, Wang L J, Lao H, Shentu G L, Wian J, Cui K, Yin H L, Liu N L, Li L, Ma X F, Pele J S, Fejer M M, Zhang Q, Pan J W 2013 Phys. Rev. Lett. 111 130502
[21] Tang Z, Liao Z, Xu F, Qi B, Qian L, Lo H K 2013 arXiv: 13066134
[22] Pironio S, Acín A, Brunner N, Gisin N, Massar S, Scarani V 2009 New J. Phys. 11 045021
[23] Sasaki M, Suzuki S 2006 Phys. Rev. A. 73 043807
[24] Wenger J, Tuall-Brouri R, Grangie P 2004 Phys. Rev. Lett. 92 153601
[25] Sun S H, Gao M, Dai H Y, Chen P X, Li C Z 2008 Chin. Phys. Lett. 25 2358
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[1] Bennet C H, Brassard G 1984 Proc. IEEE International Conference Computers, Systems, and Signal Processing Bangalore, India, December 9-12, 1984 pp175-179
[2] Shor P W, Preskill J 2000 Phys. Rev. Lett. 85 441
[3] Mayers D 2001 J. ACM 48 351
[4] Gottesman D, Lo H K, Lutkenhaus N, Preskill J 2004 Quantum Infor. Comput. 4 325
[5] Zhou Y Y, Zhou X T, Tian P G, Wang Y J 2013 Chin. Phys. B 22 010305
[6] Sheng Y B, Zhou L, Cheng W W, Gong L Y, Wang L, Zhan S M 2013 Chin. Phys. B 22 030314
[7] Jiao R Z, Zhang W H 2009 Acta Phys. Sin. 58 2189 (in Chinese) [焦荣珍, 张文瀚 2009 58 2189]
[8] Dong C, Zhao S H, Zhao W H, Shi L, Dong Y 2014 Acta Phys. Sin. 63 030302 (in Chinese) [东晨, 赵尚弘, 赵卫虎, 石磊, 董毅 2014 63 030302]
[9] Wang J D, Qin X J, Wei Z J, Liu X B, Liao C J, Liu S H 2010 Acta Phys. Sin. 59 281 (in Chinese) [王金东, 秦晓娟, 魏正军, 刘小宝, 廖常俊, 刘颂豪 2010 59 281]
[10] Brassard G, Lutkenhaus N, Mor T, Sanders B C 2000 Phys. Rev. Lett. 85 1330
[11] Sun S H, Liang L M 2012 Appl. Phys. Lett. 101 071107
[12] Makarov V, Skaar J 2008 Quantum Infor. Comput. 86 622
[13] Zhao Y, Fung C H F, Qi B, Chen C, Lo H K 2008 Phys. Rev. A 78 042333
[14] Makarov V 2009 New J. Modern Opt. 11 065003
[15] Lo H K, Curty M, Qi B 2012 Phys. Rev. Lett. 108 130503
[16] Hwang W Y 2003 Phys. Rev. Lett. 91 057901
[17] Ma X F, Fung C H F, Razavi M 2012 Phys. Rev. A 86 052305
[18] Wang X B 2013 Phys. Rev. A 87 012320
[19] Sun S H, Gao M, Li C Y, Liang L M 2013 Phys. Rev. A 87 052329
[20] Liu Y, Chen T Y, Wang L J, Lao H, Shentu G L, Wian J, Cui K, Yin H L, Liu N L, Li L, Ma X F, Pele J S, Fejer M M, Zhang Q, Pan J W 2013 Phys. Rev. Lett. 111 130502
[21] Tang Z, Liao Z, Xu F, Qi B, Qian L, Lo H K 2013 arXiv: 13066134
[22] Pironio S, Acín A, Brunner N, Gisin N, Massar S, Scarani V 2009 New J. Phys. 11 045021
[23] Sasaki M, Suzuki S 2006 Phys. Rev. A. 73 043807
[24] Wenger J, Tuall-Brouri R, Grangie P 2004 Phys. Rev. Lett. 92 153601
[25] Sun S H, Gao M, Dai H Y, Chen P X, Li C Z 2008 Chin. Phys. Lett. 25 2358
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