Security of quantum key distribution using two-mode squeezed states against optimal beam splitter attack
He Guang-Qiang(何广强)†, Zhu Si-Wei(朱思维), Guo Hong-Bin(郭红斌), and Zeng Gui-Hua(曾贵华)
The State Key Laboratory on Fiber-Optic Local Area Networks and Advanced Optical Communication Systems, Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China
Abstract For the beam splitter attack strategy against quantum key distribution using two-mode squeezed states, the analytical expression of the optimal beam splitter parameter is provided in this paper by applying the Shannon information theory. The theoretical secret information rate after error correction and privacy amplification is given in terms of the squeezed parameter and channel parameters. The results show that the two-mode squeezed state quantum key distribution is secure against an optimal beam splitter attack.
Received: 01 June 2007
Revised: 19 November 2007
Accepted manuscript online:
Fund: Project supported by the Shanghai
Jiaotong University (SJTU) Young Teacher Foundation, China (Grant No
A2831B), the SJTU Participating in Research Projects (PRPs), China
(Grant No T03011030), and the National Natural Science Foundation of
China (Grant No
Cite this article:
He Guang-Qiang(何广强), Zhu Si-Wei(朱思维), Guo Hong-Bin(郭红斌), and Zeng Gui-Hua(曾贵华) Security of quantum key distribution using two-mode squeezed states against optimal beam splitter attack 2008 Chin. Phys. B 17 1263
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
