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Closed sets of nonlocal correlations

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)062107-1 - 062107-6
Number of pages6
JournalPhysical Review A: Atomic, Molecular and Optical Physics
DatePublished - Dec 2009


We present a fundamental concept—closed sets of correlations—for studying nonlocal 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 nonlocality is limited, and for finding constraints on physical theories beyond quantum mechanics.


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