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一种基于确定性量子密钥分发误码判据的相位调制器半波电压的精确测定方法

魏正军 万伟 王金东 廖常俊 刘颂豪

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一种基于确定性量子密钥分发误码判据的相位调制器半波电压的精确测定方法

魏正军, 万伟, 王金东, 廖常俊, 刘颂豪

A new method to acquire the half-wave voltage by the quantum bit error rate in the deterministic quantum key distribution system

Wei Zheng-Jun, Wan Wei, Wang Jin-Dong, Liao Chang-Jun, Liu Song-Hao
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  • 基于相位编码的量子密钥分发系统需要对信息加载的相位调制器的半波电压进行精确的测定以减小量子密钥的误码率,相位调制器半波电压的测量精度直接影响到了量子密钥分发系统的最终误码.本文提出了一种基于确定性量子密钥分发误码率判据的相位调制器半波电压的精确测定方法,所采用相位调制器的半波电压的测量精度达到了2 mV,实验结果表明这种方法可以用于量子密钥分发实际应用系统中实时获得不同条件下的行波相位调制器的半波电压以最大程度地减小由于相位信息不准确加载而带来的系统误码.
    The value of the half-wave voltage of the phase modulator must be measured with high accuracy to reduce the quantum bit error rate (QBER) in a quantum key distribution system based the phase-coding scheme. A new method to measure the half-wave voltage of the phase modulator in an accuracy of 2 mV by adjusting the quantum bit error rate (QBER) of the deterministic quantum key distribution is proposed experimentally to increase the accuracy of the half-wave voltage and reduce the error rate of the quantum key distribution system. The experimental results show that this method can be used to acquire efficiently the half-wave voltage of the phase modulator in a high accuracy which can make the error rate from adding the inaccurate voltage to the phase modulator decrease to the greatest extent.
    • 基金项目: 广州市科技支撑计划(批准号:2008Z1-D501)和广东省工业攻关项目(批准号:2007B010400009)资助的课题.
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  • [1]

    Wiesner S 1983 SIGACT News 15 78

    [2]
    [3]

    Bennett C H, Brassard G 1984 Proceedings of the IEEE International Conference on Computers, Systems, and Signal Processing, Bangalore, India,New York: IEEE 1984 p175

    [4]
    [5]

    Hwang W Y 2003 Phys. Rev. Lett. 91 057901

    [6]

    Kurtsiefer C, Zarda P, Halder M, Weinfurter H, Gorman P, Tapster P R, Rarity J G 2002 Nature 419 450

    [7]
    [8]
    [9]

    Tobias S M, Henning W, Martin F, Rupert U, Felix T, Thomas S, Josep P, Zoran S, Christian K, John G R, Anton Z, Harald W 2007 Phys. Rev. Lett. 98 010504

    [10]

    Stucki D, Gisin N, Guinnard O, Ribordy G, Zbinden H 2002 New J. Phys. 4 41

    [11]
    [12]
    [13]

    Hiskett P A, Rosenberg D, Peterson C G, Hughes R J, Nam S W, Lita A E, Miller A J, Nordholt J E 2006 New J. Phys. 8 193

    [14]
    [15]

    Elliott C, Colvin A, Pearson D, Pikalo O, Schlafer J, Yeh H 2005 Proceedings of the SPIE, May 25, 2005 p138

    [16]
    [17]

    Poppe Andreas, Peev M, Maurhart O 2008 Int. J. Quantum Inf. 6 2

    [18]

    Wang J D, Lu W, Zhao F, Liu X B, Guo B H, Zhang J, Huang Y X, Lu Y Q, Liu S H 2008 Acta Phys. Sin. 57 4214 (in Chinese) [王金东、路巍、赵峰、刘小宝、郭邦红、张静、黄宇娴、路轶群、刘颂豪 2008 物理学报 57 4214]

    [19]
    [20]

    Hu H P, Zhang J, Wang J D, Huang Y X, Lu Y Q, Liu S H, Lu W 2008 Acta Phys. Sin. 57 5605 (in Chinese) [胡华鹏、张 静、王金东、黄宇娴、路轶群、刘颂豪、路 巍 2008 物理学报 57 5605]

    [21]
    [22]

    Wang J D, Qin X J, Zhang H N, Wei Z J, Liao C J, Liu S H 2009 Optics Communications 282 3379

    [23]
    [24]

    Wang J D, Wei Z J, Zhang H, Xiao J Q,Liu X B,Zhang Z M,Liao C J,Liu S H 2010 J. Phys. B: At. Mol. Opt. Phys. 43 095504

    [25]
    [26]

    Gisin N, Ribordy G, Tittel W, Zbinden H 2002 Rev. Mod. Phys. 74 145

    [27]
    [28]
    [29]

    Chen W, Han Z F, Mo X F, Xu F X, Wei G, Guo G C 2008 Chinese Science Bulletin 53 9

    [30]
    [31]

    Makarov V, Brylevski A, Hjelme D R 2004 Appl. Opt. 43 4385

    [32]

    Wang J D, Qin x J, Liu X B, Liao C J, Liu S H 2010 Acta Phys. Sin. 59 281 (in Chinese) [王金东、秦晓娟、刘小宝、廖常俊、刘颂豪 2010 物理学报 59 281]

    [33]
    [34]
    [35]

    Zhou N R, Wang L J, Ding J, Gong L H 2010 Physica Scripta. 81 045009

    [36]
    [37]

    Zhou N R, Wang L J, Ding J, Gong L H 2010 International Journal of Theoretical Physics 49 2035

    [38]
    [39]

    Inoue K, Waks E, Yamamoto Y 2002 Phys. Rev. Lett. 89 037902

    [40]
    [41]

    Takesue H, Sae W N, Qiang Z, Robert H, Toshimori H, Kiyoshi T, Yamamoto Y 2007 Nat. Photonics 1 343

计量
  • 文章访问数:  6599
  • PDF下载量:  730
  • 被引次数: 0
出版历程
  • 收稿日期:  2011-02-04
  • 修回日期:  2011-04-01
  • 刊出日期:  2011-09-15

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