Figure 5
Infidelity of reconstruction in dependence of the noise parameters ζ and r for the Heisenberg interaction (a), (b) and the Ising interaction (c), (d) under depolarizing noise (a), (c) and over- and under-rotation (b), (d). The QST measurement sets were 9 separable bases (red) which don’t depend on the noise as only entngling gates are effected, MUBs (blue), and numerically optimized quorums (green). The error bars indicate the standard deviation of the mean after averaging over 105 random density matrices. The total number of measurements runs is \(N_{\mathrm{tot}}=5\times 9\times 512\)