4 states protocol for time coding quantum key distribution
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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.
2 pages, 2 figures, Proceedings from the QELS conference, june 1-6, 2003, QTuB2
2 pages, 2 figures, Proceedings from the QELS conference, june 1-6, 2003, QTuB2