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2008 Volume 17 Issue 4
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He Guang-Qiang, Zhu Si-Wei, Guo Hong-Bin, Zeng Gui-Hua. 2008: Security of quantum key distribution using two-mode squeezed states against optimal beam splitter attack, Chinese Physics B, 17(4): 1263-1268.
Citation: He Guang-Qiang, Zhu Si-Wei, Guo Hong-Bin, Zeng Gui-Hua. 2008: Security of quantum key distribution using two-mode squeezed states against optimal beam splitter attack, Chinese Physics B, 17(4): 1263-1268.
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Security of quantum key distribution using two-mode squeezed states against optimal beam splitter attack

  • The State Key Laboratory on Fiber-Optlc Local Area Networks and Advanced Optical Communication Systems,Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China

  • Available Online: 30/04/2008
  • Fund Project: the Shanghai Jiaotong University (SJTU) Young Teacher Foundation, China(Grant A2831B)%the SJTU Participating in Research Projects%China(Grant T03011030)%the National Natural Science Foundation of China(Grant 6o472018)
  • 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.
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Security of quantum key distribution using two-mode squeezed states against optimal beam splitter attack

  • Available Online: 30/04/2008

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.

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