Physics – Quantum Physics
Scientific paper
2011-04-07
Physics
Quantum Physics
6 pages
Scientific paper
Recently, Boyer et al. presented a novel semiquantum key distribution protocol [M. Boyer, D. Kenigsberg, and T. Mor, Phys. Rev. Lett. 99, 140501 (2007)], by using four quantum states, each of which is randomly prepared by Z basis or X basis. Here we present a semiquantum key distribution protocol by using entangled states in which quantum Alice shares a secret key with classical Bob. We also show the protocol is secure against eavesdropping.
Tang Chao-jing
Wang Jian
Zhang Quan
Zhang Sheng
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