Bound non-locality and activation
Quantum Physics
2011-01-18 v1
Abstract
We investigate non-locality distillation using measures of non-locality based on the Elitzur-Popescu-Rohrlich decomposition. For a certain number of copies of a given non-local correlation, we define two quantities of interest: (i) the non-local cost, and (ii) the distillable non-locality. We find that there exist correlations whose distillable non-locality is strictly smaller than their non-local cost. Thus non-locality displays a form of irreversibility which we term bound non-locality. Finally we show that non-local distillability can be activated.
Cite
@article{arxiv.1009.4207,
title = {Bound non-locality and activation},
author = {Nicolas Brunner and Daniel Cavalcanti and Alejo Salles and Paul Skrzypczyk},
journal= {arXiv preprint arXiv:1009.4207},
year = {2011}
}
Comments
4 pages, 1 figure