Extended Data Fig. 4: Residuals at \(\bar{n}=\) 1/2 and 1.

a, PL spectrum measured at \(\bar{n}\)=1/2 (top) together with the modelled profile (black line). The bottom panel displays the residuals between modelled and measured profiles (black line), compared to the amplitude of poissonian fluctuations (grey area). b, Same measurements for \(\bar{n}\)= 1. Experimental results are taken from the data reported in Fig. 2b–d.