Experiment of Aspect, Grangier, and Roger

Figure 11. Normalized coincidence rate as a function of the relative orientation of the transmission axes of the polarizers in the experiment of Aspect, Grangier, and Roger. The solid curve represents the quantum mechanical prediction.

Aspect, Grangier, and Roger also used this experiment to test the BCHSH inequality in the form of Eq. (23), -1 5 < 0, which does not assume the rotational invariance required for the Freedman form of the inequality. They found S = 0.126 0.014 violating inequality (23) by nine... 

Figure 16.9 Results of Aspect experiment. Dotted curve shows prediction of quantum mechanics (multiplied by 0.955 to correct for detection efficiency). Shaded regions show where Bell s inequality is violated. [From A. Aspect, P. Grangier, and G. Roger. Phys. Rev. Lett. 49,91 (1982)].

---