Equation Icon  𝕍sqz = ⟨sqz0(r,ϕ)|Xˆ ∘XˆT |sqz0(r,ϕ)⟩ = ℙ [− ϕ]𝕊sqz[r,0]𝕍vac𝕊sqz[r,0]ℙ[ϕ] = 1 1[ cosϕ sinϕ ] [e2r 0 ] [cos ϕ − sin ϕ] --ℙ[− ϕ]𝕊sqz[2r,0]ℙ[ϕ] = -- −2r , (78 ) 2 2 − sin ϕ cosϕ 0 e sin ϕ cosϕ