Title :
4 states protocol for time coding quantum key distribution
Author :
Debuisschert, T. ; Boucher, W.
Author_Institution :
THALES Res. & Technol., Orsay, France
Abstract :
Coherent one photon pulses are sent with four possible time delays with respect to a reference. Ambiguity of the photon time detection resulting from pulses overlap combined with interferometric measurement allows for secure key exchange.
Keywords :
optical communication; photon counting; protocols; quantum cryptography; 4 states protocol; coherent one photon pulses; interferometric measurement; photon time detection; quantum key distribution; secure key exchange; time coding; Counting circuits; Delay effects; Optical interferometry; Optical pulses; Performance evaluation; Photonics Society; Position measurement; Protocols; Pulse measurements; Time measurement;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.237856
