Shanghai Branch, National Laboratory for Physical Sciences at Microscale, Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China.
Phys Rev Lett. 2013 Jun 28;110(26):260407. doi: 10.1103/PhysRevLett.110.260407. Epub 2013 Jun 26.
In their well-known paper, Einstein, Podolsky, and Rosen called the nonlocal correlation in quantum entanglement a "spooky action at a distance." If the spooky action does exist, what is its speed? All previous experiments along this direction have locality and freedom-of-choice loopholes. Here, we strictly closed the loopholes by observing a 12 h continuous violation of the Bell inequality and concluded that the lower bound speed of spooky action was 4 orders of magnitude of the speed of light if Earth's speed in any inertial reference frame was less than 10(-3) time the speed of light.
在他们著名的论文中，爱因斯坦、波多尔斯基和罗森称量子纠缠中的非局域相关性为“远距离的幽灵行动”。如果幽灵行动确实存在，那么它的速度是多少？沿着这个方向的所有先前实验都存在局域性和自由选择漏洞。在这里，我们通过观察 12 小时连续违反贝尔不等式，严格地关闭了这些漏洞，并得出结论，如果地球在任何惯性参考系中的速度低于光速的 10^(-3)，那么幽灵行动的下限速度将是光速的 4 个数量级。
