Figure 4
From: Squeezed-light-driven force detection with an optomechanical cavity in a Mach–Zehnder interferometer

(a) 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). (b) Optimum sPSD of \({\hat{F}}(\omega )\) normalized to the SQL as a function of the scaled detection frequency. The parameters used are \(\Gamma /\Omega = 10^{-3}\).