B. Huttner, A. Muller, G. Ribordy, W. Tittel, H. Zbinden, and N. Gisin, Group of Applied Physics, Univ. of Geneva, Geneva, Switzerland.
Quantum cryptography relies on the interplay between classical cryptography and quantum mechanics to ensure the confidentiality of information carried by unprotected channels. It could well become the first practical application of quantum mechanics at the single quantum level.
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