Reduced randomness in quantum cryptography with sequences of qubits encoded in the same basis

L.-P. Lamoureux, H. Bechmann-Pasquinucci, N. J. Cerf, N. Gisin, C. Macchiavello
2006 Physical Review A. Atomic, Molecular, and Optical Physics  
Time coding quantum key distribution with coherent faint pulses is experimentally demonstrated. A measured 3.3 % quantum bit error rate and a relative contrast loss of 8.4 % allow a 0.49 bit/pulse advantage to Bob.
doi:10.1103/physreva.73.032304 fatcat:3dpi2wweq5hnzhmkfmiekhysrq