Equation Icon  𝕊sqz(Ω) = ℙ [− ϕ(Ω )]𝕊sqz[r(Ω),0]𝕊vac(Ω )𝕊sqz[r(Ω ),0 ]ℙ [ϕ (Ω )] = 𝕊sqz(r(Ω ),ϕ (Ω)). (83 &