Manuscript Hawk01-B@1 · Hawk01-B.tex · section · cfa976f1

Single-reference diagnostics

Exact and approximate residual-leakage certificates › Single-reference diagnostics · lines 473–485

Hawk01-B@1#eq:Choi

For a channel $Λ : A \to A$ , define its normalized Choi state and Bell-input entanglement fidelity by

J (Λ) = (id_{S} \otimes Λ) (∣ Φ_{d} ⟩ ⟨ Φ_{d} ∣), F_{e} (Λ) = ⟨ Φ_{d} ∣ J (Λ) ∣ Φ_{d} ⟩ .

Displayed formulas in this passage

Hawk01-B@1#eq:Choi · line 477
$J (Λ) = (id_{S} \otimes Λ) (∣ Φ_{d} ⟩ ⟨ Φ_{d} ∣), F_{e} (Λ) = ⟨ Φ_{d} ∣ J (Λ) ∣ Φ_{d} ⟩ .$