Experimental violation of a Bell's inequality with efficient detection

@article{Rowe2001ExperimentalVO,
  title={Experimental violation of a Bell's inequality with efficient detection},
  author={Mary A. Rowe and David Kielpinski and Volker Meyer and Charles A. Sackett and Wayne M. Itano and Christopher R. Monroe and David J. Wineland},
  journal={Nature},
  year={2001},
  volume={409},
  pages={791-794}
}
Local realism is the idea that objects have definite properties whether or not they are measured, and that measurements of these properties are not affected by events taking place sufficiently far away. Einstein, Podolsky and Rosen used these reasonable assumptions to conclude that quantum mechanics is incomplete. Starting in 1965, Bell and others constructed mathematical inequalities whereby experimental tests could distinguish between quantum mechanics and local realistic theories. Many… 
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