Fig. 4: Mølmer–Sørensen gate optimization.
From: Deterministic entangling gates with nonlinear quantum photonic interferometers
a Best average gate fidelity values comparison after the optimization of the block structure non-decreasing. Free propagation and interaction times were fixed to 1 ps. b Plot showing the optimal M–S matrix (rounded at the third decimal digit) for \(U/{J}_{\max }=0.5\) and 20 blocks, for which we calculate \(\bar{F}({\theta }_{{\rm {opt}}}) \, \approx \, 99.96 \%\).
