Wednesday, March 20, 2013

1303.4357 (Bin Yan)

Quantum Correlations are Tight Bounded by Exclusivity Principle    [PDF]

Bin Yan
It is a fundamental problem in physics that what principle limits the correlations as predicted by our current description of nature, based on quantum mechanics. One possible explanation is the "global exclusivity" principle recently been discussed in [Phys. Rev. Lett. 110, 060402 (2013)]. In this work we show that this principle actually has a much stronger restriction on the probability distribution. We provide a tight constraint inequality imposed by this principle and prove that this principle singles out quantum correlations in scenarios represented by any graph. Our result implies that exclusivity principle might be one of the fundamental principles of nature.
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