The story
Named after John Clauser, Michael Horne, Abner Shimony, and Richard Holt, who described it in a much-cited paper published in 1969.
Etymology from Wiktionary, CC BY-SA 4.0.
CHSH inequality
Today it means: An inequality used in the proof of Bell's theorem: |S|≤2,, where S=E(a,b)-E(a,b')+E(a',b)+E(a',b'). Full definition →