| GENERAL |
|
|
|
|
A New Quantum Key Distribution Scheme Based on Frequency and Time Coding |
ZHU Chang-Hua, PEI Chang-Xing, QUAN Dong-Xiao, GAO Jing-Liang, CHEN Nan, YI Yun-Hui |
| State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071 |
|
| Cite this article: |
|
ZHU Chang-Hua, PEI Chang-Xing, QUAN Dong-Xiao et al 2010 Chin. Phys. Lett. 27 090301 |
|
|
|
|
Abstract A new scheme of quantum key distribution (QKD) using frequency and time coding is proposed, in which the security is based on the frequency-time uncertainty relation. In this scheme, the binary information sequence is encoded randomly on either the central frequency or the time delay of the optical pulse at the sender. The central frequency of the single photon pulse is set as ω1 for bit 0 and set as ω2 for bit 1 when frequency coding is selected. However, the single photon pulse is not delayed for bit 0 and is delayed in τ for 1 when time coding is selected. At the receiver, either the frequency or the time delay of the pulse is measured randomly, and the final key is obtained after basis comparison, data reconciliation and privacy amplification. With the proposed method, the effect of the noise in the fiber channel and environment on the QKD system can be reduced effectively.
|
| Keywords:
03.67.Dd
42.50.Dv
|
|
|
Received: 15 March 2010
Published: 25 August 2010
|
|
| PACS: |
03.67.Dd
|
(Quantum cryptography and communication security)
|
| |
42.50.Dv
|
(Quantum state engineering and measurements)
|
|
|
|
|
|
[1] Bennett C H and Brassard G 1984 Proceedings of the IEEE International Conference on Computers, Systems, and Signal Processing (Bangalore, India) p 175
[2] Gisin N, Ribordy G, Tittel W and Zbinden H 2002 Rev. Mod. Phy. 74 145
[3] Bennett C H, Bessette F, Brassard G, Salvail L and Smolin J 1992 J. Cryptol. 5 3
[4] Chen J, Li Y, Wu G and Zeng H P 2007 Acta Phys. Sin. 56 5243 (in Chinese)
[5] Liu W T, Wu W, Liang L M, Li C Z and Yuan J M 2006 Chin. Phys. Lett. 23 287
[6] Bennett C H 1992 Phys. Rev. Lett. 68 3121
[7] Zbinden H, Gautier J D, Gisin N, Huttner B, Muller A and Tittel W 1997 Electron. Lett. 33 586
[8] Muller A, Herzog T, Huttner B, Tittel W, Zbinden H and Gisin N 1997 Appl. Phys. Lett. 70 793
[9] Liang C, Fu D H, Liang B, Liao J, Wu L A, Yao D C and Lv S W 2001 Acta Phys. Sin. 50 1429 (in Chinese)
[10] Miao E L, Mo X F, Gui Y Z, Han Z F and Guo G C 2004 Acta Phys. Sin. 53 2123 (in Chinese)
[11] Mèrolla, J M, Mazurenko Y, Goedgebuer J P and Rhodes W T 1999 Phys. Rev. Lett. 82 1656
[12] Bloch M, McLaughlin S W, Merolla J M and Patois F 2007 Opt. Lett. 32 301
[13] Zhang T, Yin Z Q, Han Z F and Guo G C 2008 Opt. Commun. 281 4800
[14] Stucki D, Brunner N, Gisin N, Scarani V and Zbinden H 2005 Appl. Phys. Lett. 87 194108
[15] Debuisschert T and Boucher W 2004 Phys. Rev. A 70 042306
[16] Stucki D, Barreiro C, Fasel S, Gautier J D, Gay O, Gisin N, Thew R, Thoma Y, Trinkler P, Vannel F and Zbinden H 2009 Opt. Expr. 17 13326
[17] Ekert A K 1991 Phys. Rev. Lett. 67 661
[18] Huang X, Li S M and Wang A M 2007 Chin. Phys. Lett. 24 2479
[19] Inoue K, Waks E and Yamamoto Y 2002 Phys. Rev. Lett. 89 037902
[20] Li M M, Wang F Q, Lu Y Q, Zhao F, Chen X, Liang R S and Liu S H 2006 Acta Phys. Sin. 55 4642 (in Chinese)
[21] Wang W Y, Wang C, Wen K and Long G L 2007 Chin. Phys. Lett. 24 1463
[22] Qi B 2006 Opt. Lett. 31 2795
[23] Donnelly T D and Grossman C H 1998 Am. J. Phys. 66 677
[24] Goltsman G, Korneev A and Divochiy A 2009 J. Mod. Opt. 56 1670
[25] Ma R L 2006 Quantum Cryptography Communications (Beijing: Science Press) (in Chinese)
[26] Hwang W Y 2003 Phys. Rev. Lett. 91 057901
[27] Wang X B 2005 Phys. Rev. Lett. 94 230503
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
