In the experiment, we measure previously untested correlations between two entangled photons, and show that these correlations violate an inequality proposed by Leggett for non-local realistic theories.

• 在实验中,我们测量以前未测试过的两个纠缠态光子的关联,结果显示这种关联违反Leggett提出的非实在定域性理论。