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量子纠缠交换能够建立可靠的量子远程传输信道, 实现量子态的远程传输. 然而, 基于纠缠交换的量子信道要求网络高度稳定, 否则会浪费大量纠缠资源. 为节省纠缠资源, 本文根据隐形传态理论, 提出了一种基于分组交换的量子通信网络传输协议, 建立了发送量子态所需的纠缠数目与所经过的路由器数、链路错误率的定量关系, 并与纠缠交换传输协议进行了比较. 仿真结果表明, 在链路错误率为0.1% 时, 分组传输协议所使用的纠缠数目少于纠缠交换的数目, 另外, 随着错误率的升高, 分组传输协议所需的纠缠数比纠缠交换协议明显减少. 由此可见, 基于分组交换的量子通信网络传输协议在网络不稳定时, 能够节省大量纠缠资源, 适用于链路不稳定的量子通信网络.
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[17] Wu G Y 2007 The Internet Network(Beijing: Tsinghua University press) p17-22 (in Chinese) [吴功宜 2007 计算机网络 (北京: 清华大学出版社) 第17–22页]
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[1] Bennett C H, Brassard G 1984 Processing of the IEEE International Conference on Computers Systems and Signal Processing Bangalore, India, December 10-12, 1984 p175
[2] Ekert A 1991 Phys. Rev. Lett. 67 661
[3] Bennett C H 1992 Phys. Rev. Lett. 68 3121
[4] Huttner B, Imoto N, Mor T 1995 Phys. Rev. A 51 1863
[5] Bennett C H, Brassard G, Crepeau C, Jozsa R, Peres A, Wooters W K 1993 Phys. Rev. Lett. 70 1895
[6] Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurter H, Zeilinger A 1997 Nature 390 575
[7] Jin X M, Ren J G, Yang B, Yi Z H, Zhou F, Xu X F, Wang S K, Yang D, Hu Y F, Jiang S, Yang T, Yin H, Chen K, Peng C Z, Pan J W 2010 Nat. Photonics 4 p376
[8] Ma X S, Herbst T, Scheidl T, Wang D Q, Kropatschek S, Naylor W, Wittmann B, Mech A, Kofler J, Anisimova E, Makarov V, Jennewein T, Ursin R, Zeilinger A 2012 Nature 489 7415
[9] Ding D S, Zhou Z Y, Shi B S, Guo G C 2013 Nat. Commun. 4 2527
[10] Zhu C H, Pei C X, Ma H X, Yu X F 2006 J. Xidian Univ. 33 839 (in Chinese) [朱畅华, 裴昌幸, 马怀新, 于晓飞 2006 西安电子科技大学学报 33 839]
[11] Zhun W, Nie M 2013 Acta Phys. Sin. 62 130304 (in Chinese) [朱伟, 聂敏 2013 物理学报 62 130304]
[12] Xue L, Nie M, Liu X H 2013 Acta Phys. Sin. 62 170305 (in Chinese) [薛乐, 聂敏, 刘晓慧 2013 物理学报 62 170305]
[13] Yu X T, Xu J, Zhang Z C 2012 Acta Phys. Sin. 61 220303 (in Chinese) [余旭涛, 徐进, 张在琛 2012 物理学报 61 220303]
[14] Chan H C B, Leung V C M 2000 Conference on Electrical and Computer Engineering Halifax, Canada, Mar 7-10, 2000 p459
[15] Ray Y W L, Henry C B C, Hui C, Tharam S D, Victor O K L, Victor C M L 2008 J. Commun. Netw-s. Kor. 10 316
[16] Wang J M 2014 MS Dissertation (Xi'an: Xi'an University of Electronic Science and Technology) (in Chinese) [王建民 2014 硕士学位论文 (西安: 西安电子科技大学)]
[17] Wu G Y 2007 The Internet Network(Beijing: Tsinghua University press) p17-22 (in Chinese) [吴功宜 2007 计算机网络 (北京: 清华大学出版社) 第17–22页]
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