Extended Data Fig. 3: Individual and combined estimates of non-stationary noise between measurement segments.
From: Quantum correlations between light and the kilogram-mass mirrors of LIGO
The two upper plots show the relative time variation of noise between each pair of reference and squeezing measurement segments, respectively. The black lines show 2σ or a 95% confidence level. The bottom plot shows the combined non-stationary power defined by equation (14).
