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Tight correlation-function Bell inequality for multipartite<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>d</mml:mi></mml:math>-dimensional systems
We generalize the correlation functions of the Clauser-Horne-Shimony-Holt (CHSH) inequality to multipartite $d$-dimensional systems. All the Bell inequalities based on this generalization take the same simple form as the CHSH inequality. For small systems, numerical results show that the new inequalities are tight and we believe this is also valid …