Figure 3: Higher dimensional analog of BB84, using two MUBs.
From: Numerical approach for unstructured quantum key distribution
This plot shows the theoretical key rate as solid curves, and the result of our numerical optimization as circular dots, for dA=dB=d, with d=6 (blue), d=8 (red), and d=10 (black). Again, the dots should be viewed as reliable lower bounds, but in this case they are perfectly tight.
