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arXiv · 1105.2499

Relation between information and disturbance in quantum key distribution protocol with classical Alice

Takayuki Miyadera
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Abstract

The "semiquantum" key distribution protocol introduced by Zou et al. [Phys. Rev. A Vol.79, 052312 (2009)] is examined. The protocol while using two-way quantum communication requires only Bob to be fully quantum. We derive a trade-off inequality between information gained by Eve and the disturbance observed by legitimate users. It guarantees that Eve cannot obtain large information if the disturbance is sufficiently small.

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Takayuki Miyadera. 2011-05-12. Relation between information and disturbance in quantum key distribution protocol with classical Alice. https://arxiv.org/abs/1105.2499

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