Figure 1

Broadening of noise power spectra. Comparison between the density noise spectrum of the mechanical position fluctuation operators with (solid red line) and without (dashed black line) the influence of the CSL mechanism obtained using Adler’s estimate of the CSL coupling strength and a mechanical oscillator of 15 ng. The inset shows an analogous study for \(m=150\mbox{ ng}\) (figure from Ref. [56]).