Extended Data Fig. 5: Multistep squeezing, comparison between data and simulation.
From: Scalable spin squeezing in a dipolar Rydberg atom array

Measurements of the squeezing parameter obtained with two different procedures. The first one (purple dots) is the original sequence illustrated in Fig. 1(c). The second one (dark green dots) is the multistep sequence. The shaded regions show the simulations including 97.5 ± 1% (resp. 99 ± 1%) detection efficiency of \(\left|\uparrow \right\rangle \) (resp. \(\left|\downarrow \right\rangle \)). These data correspond to a 6 × 6 array.