Abstract
Counterfactual quantum key distribution provides natural advantage against the eavesdropping on the actual signal particles. It can prevent the photon-number-splitting attack when a weak coherent light source is used for the practical implementation. We experimentally realized the counterfactual quantum key distribution in an unbalanced Mach-Zehnder interferometer of 12.5-km-long quantum channel with a high-fringe visibility of 97.4%. According to the security analysis, the system was robust against the photon-number-splitting attack. The article is published in the original.
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References
T. G. Noh, Phys. Rev. Lett. 103, 230501 (2009); arXiv:0809.3979v2.
M. Ren, G. Wu, E. Wu, and H. Zeng, arXiv:1003.4621v1.
C. H. Bennett and G. Brassard, in Proceedings of the IEEE International Conference on Computers, Systems, and Signal Processing, Bangalore, India (IEEE, New York, 1984), pp. 175–179.
N. Gisin, G. Ribordy, W. Tittel, and H. Zbinden, Rev. Mod. Phys. 74, 145 (2002).
F. A. A. El-Orany, M. R. B. Wahiddin, M.-A. Mat-Nor, N. Jamil, and I. Bahari, Laser Phys. 20, 1210 (2010).
Y.-S. Kim, Y.-C. Jeong, and Y.-H. Kim, Laser Phys. 18, 810 (2008).
A. Muller, T. Herzog, B. Huttner, W. Tittel, H. Zbinden, and N. Gisin, Appl. Phys. Lett. 70, 793 (1997).
M. Bourennane, F. Gibson, A. Karlsson, A. Hening, P. Jonsson, T. Tsegaye, D. Ljunggren, and E. Sundberg, Opt. Express 4, 383 (1999).
C. Gobby, Z. L. Yuan, and A. J. Shields, Appl. Phys. Lett. 84, 3762 (2004).
S. B. Cho and T. G. Noh, Opt. Express 17, 19027 (2009).
C. H. Bennett, G. Brassard, and J.-M. Robert, SIAM J. Comput. 17, 210 (1988).
G. Brassard and L. Salvail, in Lecture Notes in Computer Science, Vol. 765, Ed. by T. Helleseth (Springer, New York, 1994), p. 410.
Z. L. Yuan, B. E. Kardynal, A. W. Sharpe, and A. J. Shields, Appl. Phys. Lett. 91, 041114 (2007).
L. L. Xu, E Wu, X. R. Gu, Y. Jian, G. Wu, and H. P. Zeng, Appl. Phys. Lett. 94, 161106 (2009).
J. Chen, G. Wu, Y. Li, E Wu, and H. P. Zeng, Opt. Express 15, 17928 (2007).
G. B. Xavier, G. Vilela de Faria, G. P. Temporão, and J. P. von der Weid, Opt. Express 16, 1867 (2008).
J. Chen, G. Wu, L. L. Xu, X. R. Cu, E Wu, and H. P. Zeng, New J. Phys. 11, 065004 (2009).
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Original Text © Astro, Ltd. 2011.
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Ren, M., Wu, G., Wu, E. et al. Experimental demonstration of counterfactual quantum key distribution. Laser Phys. 21, 755–760 (2011). https://doi.org/10.1134/S1054660X11070267
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DOI: https://doi.org/10.1134/S1054660X11070267