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Phys. Rev. A 80, 040103(R) (2009) [4 pages]

Recovering part of the boundary between quantum and nonquantum correlations from information causality

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Jonathan Allcock1,*, Nicolas Brunner2, Marcin Pawlowski3, and Valerio Scarani4
1Department of Mathematics, University of Bristol, Bristol BS8 1TW, United Kingdom
2H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, United Kingdom
3Institute of Theoretical Physics and Astrophysics, University of Gdansk, 80-952 Gdansk, Poland
4Centre for Quantum Technologies and Department of Physics, National University of Singapore, 3 Science Drive 2, 117543 Singapore, Singapore

Received 16 July 2009; published 14 October 2009

Recently, the principle of information causality has appeared as a good candidate for an information-theoretic principle that would single out quantum correlations among more general nonsignaling models. Here, we present results going in this direction, namely, we show that part of the boundary of quantum correlations actually emerges from information causality.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.80.040103
DOI:
10.1103/PhysRevA.80.040103
PACS:
03.65.Ud

*jon.allcock@bristol.ac.uk

 
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