Quantum dense key distribution
Ivo Pietro Degiovanni, Ivano Ruo Berchera, Stefania Castelletto, Maria Luisa Rastello, Fabio Antonio Bovino, A.M. Colla, Giuseppe Castagnoli · Physical Review A · 2004
This paper proposes a protocol for quantum dense key distribution. This protocol embeds the benefits of a quantum dense coding and a quantum key distribution and is able to generate shared secret keys four times more efficiently than the Bennet-Brassard 1984 protocol. We hereinafter prove the security of this scheme against individual eavesdropping attacks, and we present preliminary experimental results, showing its feasibility.