Discord and non-classicality in probabilistic theories
Quantum Physics
2012-09-13 v1
Abstract
Quantum discord quantifies non-classical correlations in quantum states. We introduce discord for states in causal probabilistic theories, inspired by the original definition proposed in Ref. [17]. We show that the only probabilistic theory in which all states have null discord is classical probability theory. Non-null discord is then not just a quantum feature, but a generic signature of non-classicality.
Keywords
Cite
@article{arxiv.1112.5066,
title = {Discord and non-classicality in probabilistic theories},
author = {Paolo Perinotti},
journal= {arXiv preprint arXiv:1112.5066},
year = {2012}
}
Comments
5 pages, revtex style