Table 3 Parameters obtained after fitting the measured fidelities of systems prepared in states \(|{\Psi _{1}}\rangle =(|{01}\rangle +|{10}\rangle )/\sqrt{2}\), \(|{\Psi _{2}}\rangle =(|{001}\rangle +|{010}\rangle +|{100}\rangle +|{111}\rangle )/2\) and \(|{\Psi _{3}}\rangle =(|{001}\rangle +|{010}\rangle +|{100}\rangle +|{111}\rangle )/2\) after application of \(N\in [1,600]\) LEOs to the exponential function in Eq. (12), with extra identity gates between LEO applications.
From: Implementation of leakage elimination operators and subspace protection
\(\alpha _{i}\) | \(\beta _{i}\) | \(\gamma _{i}\) | |
|---|---|---|---|
\(f_{1}^{\text {exp}}\) | 0.557617 | 0.166992 | \((2.35\pm 0.07)\times 10^{-3}\) |
\(f_{2}^{\text {exp}}\) | 0.619141 | 0.233398 | \((4.16\pm 0.09)\times 10^{-3}\) |
\(f_{3}^{\text {exp}}\) | 0.255859 | 0.738281 | \((3.00\pm 0.04)\times 10^{-2}\) |
