Lower Bound on the Speed of Nonlocal Correlations without Locality and Measurement Choice Loopholes
Abstract
In their wellknown 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 freedomofchoice 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.
 Publication:

Physical Review Letters
 Pub Date:
 June 2013
 DOI:
 10.1103/PhysRevLett.110.260407
 arXiv:
 arXiv:1303.0614
 Bibcode:
 2013PhRvL.110z0407Y
 Keywords:

 03.65.Ud;
 42.50.Xa;
 Entanglement and quantum nonlocality;
 Optical tests of quantum theory;
 Quantum Physics
 EPrint:
 11 pages, 4 figures