Fig. 3: Single-shot readout.

Histograms and fits of 10,000 single-shot measurements for a PSB readout and b CPSB readout. The integration time is tint = 1.5 μs. The orange lines are fits to the histograms9,23 and red and green lines correspond to respectively the triplet and singlet probability distributions. The left (right) inset shows the signal in arbitrary units averaged over the PSB (CPSB) single-shots as a function of wait time in the readout point, and an exponential fit to the data. a For PSB readout, the singlet corresponds to charge occupation (0200) and the triplet to (1100). b For CPSB readout, the singlet also corresponds to (0200) but the triplet corresponds to (1101), thus with an electron on dot 4.