Each channelpis unraveled by an analog unitary mixture with a symmetric angle lawwand L(ℓ) p,θ = q λp w(θ)e iθP (ℓ) p , λp =γ p/s, s:=E w[sin2 θ]∈(0,1]

Dissipative contraction for analog unraveling Assume all active single-site Pauli-Lindblad channels on siteℓare indexed byp∈S(ℓ) with physical rates {γp}p∈S(ℓ), single-site Paul