Simulating all Nonsignaling Correlations via Classical or Quantum Theory with Negative Probabilities
Year: 2013
Type: article
Abstract: 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.
Source: Physical Review Letters
Authors: Sabri W. Al-Safi, Anthony J. Short
Institutions: University of Cambridge, University of Bristol
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1995576583