Physics – Quantum Physics
Scientific paper
2009-08-11
Phys. Rev. A 80, 062107 (2009)
Physics
Quantum Physics
4+2 pages, new introduction and discussion
Scientific paper
10.1103/PhysRevA.80.062107
We introduce a fundamental concept -- closed sets of correlations -- for studying non-local correlations. We argue that sets of correlations corresponding to information-theoretic principles, or more generally to consistent physical theories, must be closed under a natural set of operations. Hence, studying the closure of sets of correlations gives insight into which information-theoretic principles are genuinely different, and which are ultimately equivalent. This concept also has implications for understanding why quantum non-locality is limited, and for finding constraints on physical theories beyond quantum mechanics.
Allcock Jonathan
Brunner Nicolas
Linden Noah
Popescu Sandu
Skrzypczyk Paul
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