Nonlocal correlations as an information-theoretic resource

@article{Barrett2005NonlocalCA,
  title={Nonlocal correlations as an information-theoretic resource},
  author={Jonathan Barrett and Noah Linden and Serge Massar and Stefano Pironio and Sandu Popescu and David Roberts},
  journal={Physical Review A},
  year={2005},
  volume={71},
  pages={022101}
}
It is well known that measurements performed on spatially separated entangled quantum systems can give rise to correlations that are nonlocal, in the sense that a Bell inequality is violated. They cannot, however, be used for superluminal signaling. It is also known that it is possible to write down sets of 'superquantum' correlations that are more nonlocal than is allowed by quantum mechanics, yet are still nonsignaling. Viewed as an information-theoretic resource, superquantum correlations… 

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