Fig. 3: Single- and Two-Qubit randomized benchmarking results.
a The benchmarking results reveal an exponential decline in the probability of returning to the initial state (blue). The single-qubit benchmarking was executed on the nitrogen spin N, carbon-1 spin C1, and carbon-2 spin C2. The two-qubit randomized benchmarking was performed across all three possible qubit connections. The errors of the single-qubit gates are limited by the T1 of the electron spin, while the two-qubit gates are limited by the T2. The simulation, which was extracted from benchmarking, fit all benchmarking results. b The measured errors of the basic gates can be visualized through an error map of the system. This error layout was subsequently used to construct a noise model of the system.
