Comment on "Quantum Key Distribution in the Holevo Limit"

Details Comment on "Quantum Key Distribution in the Holevo Limit" Comment on "Quantum Key Distribution in the Holevo Limit"

2008-01-16

arxiv.org/abs/0801.2506v1

Physical Review Letters 100, 018901 (2008)

Physics

Quantum Physics

REVTeX4, 1 page, no figure, A. Cabello Reply, Physical Review Letters 100, 018902 (2008)

Scientific paper

10.1103/PhysRevLett.100.018901

In a Letter, Cabello proposed a quantum key distribution (QKD) Protocol which attended to Holevo limit. In this comment, we show that Eve could use a simple plan to distinguish among quantum keys, without being detected by Alice and Bob. In following, we show that our approach is not restricted to Cabello Protocol. With attention to our Eavesdropping approach, it seems that Mor's arguments for no-cloning principal for orthogonal states is not general enough to avoid eavesdropping.

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