Figure 19

Figure 19: Example of a squeezed state of the continuum of modes: output state of a speed-meter interferometer. Left panel shows the plots of squeezing parameter r (Ω ) dB and squeezing angle ϕ (Ω ) versus normalized sideband frequency Ω∕ γ (here γ is the interferometer half-bandwidth). Right panel features a family of error ellipses for different sideband frequencies Ω that illustrates the squeezed state defined by rdB(Ω) and ϕ(Ω) drawn in the left panel.