par Lodewyck, J.;Bloch, Mark;Garcia-Patron Sanchez, Raul ;Fossier, S.;Karpov, Evgueni ;Diamanti, E.;Debuisschert, T.;Cerf, Nicolas ;Tualle-Brouri, R.;McLaughlin, S. W.;Grangier, P.
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 76, 042305
Publication Publié, 2007-10-03
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 76, 042305
Publication Publié, 2007-10-03
Article révisé par les pairs
Résumé : | We report on the implementation of a reverse-reconciliated coherent-state continuous-variable quantum key distribution system, with which we generated secret keys at a rate of more than 2 kb/ s over 25 km of optical fiber. Time multiplexing is used to transmit both the signal and phase reference in the same optical fiber. Our system includes all experimental aspects required for a field implementation of a quantum key distributionsetup. Real-time reverse reconciliation is achieved by using fast and efficient low-density parity check error correcting codes. |