Complementarity between signalling and local indeterminacy in quantum nonlocal correlations
Quantum Physics
2014-08-06 v2
Abstract
The correlations that violate the CHSH inequality are known to have complementary contributions from signaling and local indeterminacy. This complementarity is shown to represent a strengthening of Bell's theorem, and can be used to certify randomness in a device-independent way, assuming neither the validity of quantum mechanics nor even no-signaling. We obtain general nonlocal resources that can simulate the statistics of the singlet state, encompassing existing results. We prove a conjecture due to Hall (2010) and Kar et al. (2011) on the complementarity for such resources.
Cite
@article{arxiv.1309.4435,
title = {Complementarity between signalling and local indeterminacy in quantum nonlocal correlations},
author = {S. Aravinda and R. Srikanth},
journal= {arXiv preprint arXiv:1309.4435},
year = {2014}
}
Comments
5 pages, no figures; Accepted for publication in Quantum Information and Computation