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VOLUME 62 (1995) | ISSUE 12 | PAGE 940
On the key generation for N users in quantum cryptography
The problem of key generation for ΛΓ equivalent users in quantum cryptography is considered. An ΛΓ-particle wave function allowing simultaneous distribution of the key among N users is put forfward. We also propose a scheme for generation and distribution of a key table for JV users based on two non-orthogonal states which does not involve any entangled states which seems to be very promising for practical realisations.