科研之友
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摘要
We present an experimental test of the Clauser-Horne-Shimony-Holt Bell inequality on photon pairs in a maximally entangled state of polarization in which a value S = 2.82759 +/- 0.00051 is observed. This value comes close to the Tsirelson bound of vertical bar S vertical bar <= 2 root 2, with S -2 root 2 = 0.00084 +/- 0.00051. It also violates the bound vertical bar S vertical bar <= 2.82537 introduced by Grinbaum by 4.3 standard deviations. This violation allows us to exclude that quantum mechanics is only an effective description of a more fundamental theory.
- 出版日期2015-10-30
