Consistency of shared reference frames should be reexamined

Details Consistency of shared reference frames should be reexamined Consistency of shared reference frames should be reexamined

2008-01-15

arxiv.org/abs/0801.2301v1

Physical Review A 77, 014302, 2008

Physics

Quantum Physics

3 pages, 1 figure, comments are welcome

Scientific paper

10.1103/PhysRevA.77.014302

In a recent Letter [G. Chiribella et al., Phys. Rev. Lett. 98, 120501 (2007)], four protocols were proposed to secretly transmit a reference frame. Here We point out that in these protocols an eavesdropper can change the transmitted reference frame without being detected, which means the consistency of the shared reference frames should be reexamined. The way to check the above consistency is discussed. It is shown that this problem is quite different from that in previous protocols of quantum cryptography.

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