Experimental Test of Local Hidden-Variable Theories
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چکیده
We have measured the linear polarization correlation between the two photons from the 7 S~-6 P~-6 So cascade of Hg . The results were used to evaluate Freedman's version of the Bell inequality, 5 ~0. Our result is 6~+=+0.046+0.014, in clear violation of the inequality and in excellent agreement with the quantum mechanical prediction, 6Q+ =+ 0.044 +0.007. An important feature of the experiment was the explicit measurement of the initial density matrix for the cascading atoms.
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تاریخ انتشار 2011