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General Theory of Decoy-State Quantum Cryptography with Dark Count Rate Fluctuation |
| GAO Xiang, SUN Shi-Hai, LIANG Lin-Mei |
| Department of Physics, National University of Defense Technology, Changsha 410073 |
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| Cite this article: |
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GAO Xiang, SUN Shi-Hai, LIANG Lin-Mei 2009 Chin. Phys. Lett. 26 100307 |
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Abstract The existing theory of decoy-state quantum cryptography assumes that the dark count rate is a constant, but in practice there exists fluctuation. We develop a new scheme of the decoy state, achieve a more practical key generation rate in the presence of fluctuation of the dark count rate, and compare the result with the result of the decoy-state without fluctuation. It is found that the key generation rate and maximal secure distance will be decreased under the influence of the fluctuation of the dark count rate.
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| Keywords:
03.67.Dd
03.67.Hk
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Received: 30 March 2009
Published: 27 September 2009
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| PACS: |
03.67.Dd
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(Quantum cryptography and communication security)
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03.67.Hk
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(Quantum communication)
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[1] Brub D 1998 Phys. Rev. Lett. 81 3018
[2] Gisin N, Ribordy G, Tittel W and Zbinden H 2002 Rev.Mod. Phys. 74 145
[3] Dusek M, L\"{utkenhaus N and Hendrych M 2006 Progress in Optics ed Wolf E (New York: Elsevier) vol 6 p 381
[4] Inamori H, L\"{utkenhaus N and Mayers D 2007 Eur.Phys. J. D 41 599
[5] Huttner B, Gisin N, Mor T and Imoto N 1995 Phys.Rev. A 51 1863
[6] Lutkenhaus N and Jahma M 2002 New J. Phys. 444
[7] Brassard G, Lutkenhaus N, Mor T and Sanders B C 2000 Phys. Rev. Lett. 85 1330
[8] Hwang W Y 2003 Phys. Rev. Lett. 91 057901
[9] Wang X B, Hiroshima T, Tomita A and Hayashi M 2007 Phys. Rep. 1 448
[10] Lo H K, Ma X F and Chen K 2005 Phys. Rev. Lett. 94 230504
[11] Scarani V, Acin A, Ribordy G and Gisin N 2004 Phys.Rev. Lett. 92 057901
[12] Koashi M 2004 Phys. Rev. Lett. 93 120501
[13] Gottesman D, Lo H K, Lutkenhaus N and Preskill J 2004 Quantum Inform. Comput. 4 325
[14] Bennett C H and Brassard G 1984 Proceedings of theIEEE International Conference on Computers, Systems and SignalProcessing (New York: IEEE) p 175
[15] Zhao Y, Qi B, Ma X F, Lo H K and Qian L 2006 Phys.Rev. Lett. 96 070502
[16] Tobias S M, Weier H, Furst M, Ursin R, Tiefenbacher F,Scheidl T, Perdigues J, Sodnik Z, Kurtsiefer C, Rarity J G,Zeilinger A and Weinfurter H 2007 Phys. Rev. Lett. 98010504
[17] Peng C Z, Zhang J, Yang D, Gao W B, Ma H X, Yin H, Zeng HP, Yang T, Wang X B and Pan J W 2007 Phys. Rev. Lett. 98010505
[18] Rosenberg D, Harrington J W, Rice P R, Hiskett P A,Peterson C G, Hughes R J, Lita A E, Nam S W and Nordholt J E 2007 Phys. Rev. Lett. 98 010503
[19] Wang X B 2005 Phys. Rev. Lett. 94 230503
[20] Wang X B 2007 Phys. Rev. A 75 052301
[21] Wang X B, Peng C Z, Zhang J, Yang L and Pan J W 2008 Phys. Rev. A 77 042311
[22] Ma X F, Qi B, Zhao Y and Lo H K 2005 Phys. Rev. A 72 012326
[23] Gobby C, Yuan Z L and Shuelds A J 2004 Appl. Phys.Lett. 84 3762 |
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