Fig. 4: Fidelity vs circuit depth of the (0↑, 0↓)-circuit for NaH.

Fidelity for the iToffoli decomposition (blue), which has a circuit depth of 24, and the CZ decomposition (yellow), which has a circuit depth of 54. The locations of the iToffoli gates are marked by red crosses. The CZ decomposition results in lower overall fidelity compared to iToffoli decomposition due to higher circuit depth. The inset is the corresponding data from noisy simulation and shows a similar trend. All results in this figure are raw experimental or simulated data without any error mitigation.