Figure 7
From: Squeezed-light-driven force detection with an optomechanical cavity in a Mach–Zehnder interferometer
Optimum sPSD of \({\hat{F}}(\omega )\) as a function of scaled detection frequency \(\omega /\Omega \) (red solid curve) along with the SQL (black dashed curve) (a) across the low frequency regime and (b) enlarged in the vicinity of the mechanical resonance. The contribution from the vacuum fluctuations (orange solid curve), the squeezed vacuum fluctuations (blue dashed curve), and the thermal fluctuations (green dot-dashed curve). The parameters used are \(\kappa /\Omega = 10^2\) and \(\Gamma /\Omega = 10^{-3}\).
