Keyboard graph navigation: press N for concepts or E for relations; use arrow keys, Home, and End to move; Enter selects; Shift plus Enter selects and centers; plus and minus zoom; zero fits; Escape clears the selection. Use the visible viewport buttons as alternatives to dragging, wheel, and pinch gestures.
Canonical static concept record
Open this concept in the interactive graphRead the Markdown equivalent
Bell inequalities constrain correlations produced by local hidden-variable models, while quantum mechanics predicts and experiments observe violations under appropriate conditions.
wp-physics-bell_theoremnist-quantum-theoryhorodecki-entanglement-reviewEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Bell converted the locality problem sharpened by EPR into experimentally testable inequalities.
The source experiment, observation, anomaly, or problem materially motivated the development, revision, or acceptance of the target concept. Historical influence is not logical derivation; the edge detail states the documented role and avoids retrospective origin myths.
wp-physics-bell_theoremhorodecki-entanglement-reviewThis is an authored directed relation from the source endpoint to the target endpoint.
Quantum mechanics permits entangled-state measurement correlations that violate Bell inequalities. Not every entangled state violates a Bell inequality, so entanglement alone is not the theorem premise.
Record a genuine theorem implication that is not part of the target definition; these edges may point toward a weaker structure.
nist-quantum-theoryhorodecki-entanglement-reviewEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Bell tests measure correlations and close specified loopholes to test local hidden-variable bounds. They test physical assumptions and observed violations; the mathematical inequality itself does not require experimental proof.
The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.
wp-physics-bell_theoremnist-quantum-theory