Manuscript VII-E-ST@1 · VII-E-ST.tex · definition · d28d9c5d

Definition: Destructive readout

Contract E: readout, records, and residuals › Distinct interfaces · lines 343–354

VII-E-ST@1#def:destructive, VII-E-ST@1#eq:destructive

Let $S$ have computational basis ${∣ z ⟩}$ , with unmeasured complement $B$ . Put $D_{z} = ⟨ z ∣_{S} \otimes I_{B}$ . Destructive readout is

M_{S} (X) = z \sum ∣ z ⟩ ⟨ z ∣_{R} \otimes D_{z} X D_{z}^{†} .

Its quantum output contains $B$ , not $S$ . The measured names are consumed.

Displayed formulas in this passage

VII-E-ST@1#eq:destructive · line 348
$M_{S} (X) = z \sum ∣ z ⟩ ⟨ z ∣_{R} \otimes D_{z} X D_{z}^{†} .$