Fig. 4
From: Non-Gaussian noise spectroscopy with a superconducting qubit sensor
Gaussian spectral estimation: noise mean and PSD. a Measured values of 〈σz〉 after a 50-ns-long Ramsey sequence vs. drive detuning D = ωq − ωd. The separation between the x-intercepts of the two fitted lines gives the mean \(\mu _B^{{\mathrm{est}}}\) of the injected dephasing noise. b Comparison of the experimental reconstruction (blue triangle) and Monte Carlo simulation (orange square) with the ideal PSD (gray solid line). c Decay constants χ. Except for p = 1, the ideal data (gray circles) are in very good agreement with both the experimental results and Monte Carlo simulations. Error bars represent 95% confidence intervals
