Fig. 3: Moments and Wigner functions.
From: Quantum efficiency, purity and stability of a tunable, narrowband microwave single-photon source
a The bar chart with error bars for two standard deviations shows a comparison between the experiment (red) and theory (white) for the moments of a single-photon state \(\left|1\right\rangle\) after a π-pulse pulse and a superposition state \((\left|0\right\rangle +\left|1\right\rangle )/\sqrt{2}\) after a π/2-pulse. b Wigner functions corresponding to the moments obtained from the experiment in (a) using a maximum likelihood method34,36.
