Bar Plot from Scientific Research

To perform this reconstruction, we measure the time-resolved probability distributions of the estimated phase relative to the mean from dual-quadrature measurement. As the standard deviation ( σ ) of the phase distribution grows (inset), the estimated phase begins exceeding the -π/2 < θ < π/2 range for normal spectroscopy (black dashed lines), but is still resolvable via dual-quadrature measurement. Note that the time-dependent contribution from QPN to the standard deviation has been subtracted off in the inset ( Methods ).

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