Fig. 5
Comparison between experimental data and theoretical simulation. We overlapped the experimental data with the expected theoretical rate as a function of the link distance. The parameters used are: p dark = 2 × 10−8, η d = 0.1, α loss = 0.2 dB/km, u = 0.3, v = 0.15 for the decoy rates. Blue solid line is the rate without decoy state in case of WCP HD-QKD. Red and black solid lines are the simulated decoy state key rate for qubit or ququart encoding
