Open AccessQuantum key distribution using two-mode squeezd states
Author(s) -
Guangqiang He,
Yi Zhi,
Jun Zhu,
Guihua Zeng
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.6427
Subject(s) - quantum key distribution , beam splitter , mode (computer interface) , key (lock) , quantum channel , computer science , channel (broadcasting) , splitter , scheme (mathematics) , physics , squeezed coherent state , distribution (mathematics) , quantum mechanics , quantum information , statistical physics , quantum , coherent states , telecommunications , mathematics , optics , computer security , mathematical analysis , laser , operating system
A quantum key distribution scheme using two-mode squeezed states is proposed in this paper. The security of the proposed scheme against beam splitter attack is analyzed using Shannon information theory. The analytical expression of the secret information rate is given in terms of squeezed factor and channel parameters. The mode-mode correlation of two-mode squeezed states guarantees the security of the proposed scheme.