Bell Inequality (CHSH) — Quantum vs. Classical

CHSH inequality: |E(a,b) − E(a,b') + E(a',b) + E(a',b')| ≤ 2 (classical). Quantum mechanics: max 2√2 ≈ 2.828. Entangled singlet state: E(α,β) = −cos(α−β). Drag the angle dials.

Drag colored lines to set angles a, a', b, b'

Simulated CHSH: —