We give a partial list of 26 tight Bell inequalities for the case where Alice and Bob choose among four two-outcome measurements. All tight Bell inequalities with less settings are reviewed as well. For each inequality we compute numerically the maximal quantum violation, the resistance to noise and the minimal detection efficiency required for closing the detection loophole. Surprisingly, most of these inequalities are outperformed by the CHSH inequality.
Valentina Caprara Vivoli, Pavel Sekatski, Jean-Daniel Bancal, Charles Ci Wen Lim, Bradley Christensen, Anthony Martin, Rob Thew, Hugo Zbinden, Nicolas Gisin, Nicolas Sangouard
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