Quantum cryptography with 3-state systems

Details Quantum cryptography with 3-state systems Quantum cryptography with 3-state systems

2000-01-23

arxiv.org/abs/quant-ph/0001083v1

Phys. Rev. Lett. 85 (2000) 3313

Physics

Quantum Physics

11 pages Revtex

Scientific paper

10.1103/PhysRevLett.85.3313

We consider quantum cryptographic schemes where the carriers of information
are 3-state particles. One protocol uses four mutually unbiased bases and
appears to provide better security than obtainable with 2-state carriers.
Another possible method allows quantum states to belong to more than one basis.
The security is not better, but many curious features arise.

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