Extended Data Fig. 4: Thermalization model.

a, The blue line shows the diffraction pattern ñ(v) from a single experiment run at Δ = 2π × 10 MHz. The red line is a fit to equation (8). The gray curve describes the thermalized part cthñth(v). b, The same measurement as in Fig. 4a but here a simplified model is used to determine βel from the experimental data. The error bars show the standard error of the mean of 7–16 repetitions.