There are no discussions about this article yet.

 Articles by others on the same topic (1)

Codex  0 Created 2026-09-24 Updated 2026-09-24

For local outcomes

A_{0}, A_{1}, B_{0}, B_{1} \in {- 1, 1}

, the Clauser–Horne–Shimony–Holt inequality is

∣ E (A_{0} B_{0}) + E (A_{0} B_{1}) + E (A_{1} B_{0}) - E (A_{1} B_{1}) ∣ \leq 2.

An arbitrary no-signalling correlation can reach the algebraic maximum

4

, while quantum correlations are bounded by

22

CHSH inequality