Poh Hou Shun, Joshi Siddarth K, Cerè Alessandro, Cabello Adán, Kurtsiefer Christian
Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore.
Departamento de Física Aplicada II, Universidad de Sevilla, E-41012 Sevilla, Spain.
Phys Rev Lett. 2015 Oct 30;115(18):180408. doi: 10.1103/PhysRevLett.115.180408.
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 |S|≤2sqrt[2], with S-2sqrt[2]=0.00084±0.00051. It also violates the bound |S|≤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.
我们对处于最大纠缠偏振态的光子对进行了克劳泽 - 霍恩 - 希莫尼 - 霍尔特贝尔不等式的实验测试，观测到的值为(S = 2.82759 ± 0.00051)。该值接近(|S|≤2\sqrt{2})的齐雷尔森界，其中(S - 2\sqrt{2} = 0.00084 ± 0.00051)。它还以(4.3)个标准差违反了格林鲍姆引入的(|S|≤2.82537)的界限。这种违反使我们能够排除量子力学只是更基本理论的有效描述这一可能性。
