Fig. 6: Plot representing the noise probability required to reach chemical accuracy, pc, for different ansätze and molecule sizes (number of orbitals).
From: Quantifying the effect of gate errors on variational quantum eigensolvers for quantum chemistry
For molecules with the same number of orbitals, the mean probability is taken. The crosses and circles represent the noise probabilities required to reach chemical accuracy with and without error mitigation, respectively. The data without error mitigation is taken from Table 1, and the data with error mitigation is taken from the crosses in Fig. 5. Additionally, a recent state-of-the-art two-qubit gate-error rate with superconducting qubits is shown in purple93.
