General properties of Nonsignaling Theories

Abstract

This article identifies a series of properties common to all theories that do not allow for superluminal signaling and predict the violation of Bell inequalities. Intrinsic randomness, uncertainty due to the incompatibility of two observables, monogamy of correlations, impossibility of perfect cloning, privacy of correlations, bounds in the shareability of some states; all these phenomena are solely a consequence of the no-signaling principle and nonlocality. In particular, it is shown that for any distribution, the properties of (i) nonlocal, (ii) no arbitrarily shareable and (iii) positive secrecy content are equivalent.

10 pages

References in corpus (3)

• No Signalling and Quantum Key Distribution
• Non-local correlations as an information theoretic resource
• Popescu-Rohrlich correlations as a unit of nonlocality

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