Quantum cryptography using any two nonorthogonal states.

@article{Bennett1992QuantumCU,
  title={Quantum cryptography using any two nonorthogonal states.},
  author={Bennett},
  journal={Physical review letters},
  year={1992},
  volume={68 21},
  pages={
          3121-3124
        }
}
  • Bennett
  • Published 25 May 1992
  • Physics
  • Physical review letters
Quantum techniques for key distribution---the classically impossible task of distributing secret information over an insecure channel whose transmissions are subject to inspection by an eavesdropper, between parties who share no secret initially---have been proposed using (a) four nonorthogonally polarized single-photon states or low-intensity light pulses, and (b) polarization-entangled or spacetime-entangled two-photon states. Here we show that in principle any two nonorthogonal quantum… 

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