Correlation additivity relation is superadditive for separable states
Quantum Physics
2012-07-17 v2
Abstract
We deny with a concrete example the generality of the correlation subadditivity relation conjectured by Modi et al's [Phys. Rev. Lett. {\bf 104}, 080501 (2010)] for any quantum state and point out that the correlation additivity relation is actually super-additive for separable states. This work indicates that any effort on explicitly proving the conjecture and finding the subadditivity source is unnecessary and fruitless.
Keywords
Cite
@article{arxiv.1202.3640,
title = {Correlation additivity relation is superadditive for separable states},
author = {Zhanjun Zhang},
journal= {arXiv preprint arXiv:1202.3640},
year = {2012}
}