Manuscript Oai365-A@1 · Oai365-A.tex · section · a3840e3d

Unconditional signalling

Quantum-process data and the event carrier › Unconditional signalling · lines 247–265

For distinct parties $a, b$ , and remaining party $c$ , compare two sender channels $S, T$ , one receiver instrument $(B_{z})_{z}$ , and the same third-party channel $M_{c}$ . Define

Δ_{e} (a, b) = S, T, (B_{z}), M_{c} sup \frac{1}{2} z \sum Tr [W_{e} ((J (S) - J (T))_{a} \otimes J (B_{z})_{b} \otimes J (M_{c})_{c})] .

The other parties' outcomes are summed. There is no normalized postselection.

Displayed formulas in this passage

unlabeled · line 252
$Δ_{e} (a, b) = S, T, (B_{z}), M_{c} sup \frac{1}{2} z \sum Tr [W_{e} ((J (S) - J (T))_{a} \otimes J (B_{z})_{b} \otimes J (M_{c})_{c})] .$

Nearby in this section

lemma: Lemma: Binary reduction and attainment
section: Unconditional signalling
proposition: Proposition: Component order and finite futures
section: Unconditional signalling