The one-way unlocalizable quantum discord
Quantum Physics
2013-05-30 v2 Information Theory
math.IT
Abstract
In this paper, we present the concept of the one-way unlocalizable quantum discord and investigate its properties. We provide a polygamy inequality for it in tripartite pure quantum system of arbitrary dimension. Several tradeoff relations between the one-way unlocalizable quantum discord and other correlations are given. If the von Neumann measurement is on a part of the system, we give two expressions of the one-way unlocalizable quantum discord in terms of partial distillable entanglement and quantum disturbance. Finally, we also provide a lower bound for bipartite shareability of quantum correlation beyond entanglement in a tripartite system.
Cite
@article{arxiv.1201.3979,
title = {The one-way unlocalizable quantum discord},
author = {Zhengjun Xi and Heng Fan and Yongming Li},
journal= {arXiv preprint arXiv:1201.3979},
year = {2013}
}
Comments
6 pages, 3 figures. Minor corrections, references added