Simulating all Nonsignaling Correlations via Classical or Quantum Theory with Negative Probabilities

Sabri W. Al-Safi*, Anthony J. Short

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

20 Citations (Scopus)


Many-party correlations between measurement outcomes in general probabilistic theories are given by conditional probability distributions obeying the nonsignaling condition. We show that any such distribution can be obtained from classical or quantum theory by relaxing positivity constraints on either the mixed state shared by the parties or the local functions that generate measurement outcomes. Our results apply to generic nonsignaling correlations, but in particular they yield two distinct quasiclassical models for quantum correlations.

Original languageEnglish
Article number170403
Number of pages5
JournalPhysical Review Letters
Issue number17
Publication statusPublished - 22 Oct 2013

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