Figure 2
Comparison of the single qubit case for two fidelity estimation methods: the average value of \(|F_d-F_{true}|\) from 100 estimations by traditional method (direct fidelity estimation) is represented by black dot, the average value of \(|F_{op}-F_{true}|\) from 100 estimations by our optimal fidelity estimation is denoted by red dot, where \(F_d\) is the fidelity estimated by direct fidelity estimation, \(F_{op}\) is the fidelity estimated by optimal fidelity estimation, \(F_{true}\) is the true value of fidelity. Error bar is the standard deviation of the \(|F_d-F_{true}|\) or \(|F_{op}-F_{true}|\).
