Title :
Quantum key distribution over 25 km, using a fiber setup based on continuous variables
Author :
Fossier, S. ; Lodewyck, J. ; Diamanti, E. ; Bloch, M. ; Debuisschert, T. ; Tualle-Brouri, R. ; Grangier, P.
Author_Institution :
Thales Res. & Technol., Palaiseau
Abstract :
We describe a complete continuous variable quantum key distribution setup, reaching more than 2 kbit/s over 25 km. Time-multiplexing is used, and reconciliation is performed using fast and efficient LDPC error correcting codes.
Keywords :
error correction codes; optical fibre communication; parity check codes; quantum cryptography; quantum optics; time division multiplexing; LDPC error correcting codes; continuous Gaussian variables; distance 25 km; fiber setup; quantum key distribution; time multiplexing; Error correction codes; Local oscillators; Noise measurement; Optical fibers; Optical pulses; Parity check codes; Phase modulation; Protocols; Pulse measurements; Pulse modulation; (270.5568) Quantum cryptography; (270.5585) Quantum information and processing;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
