Dynamics of quantum discord in the purification process
Quantum Physics
2013-12-10 v2
Abstract
We investigate the dynamics of quantum discord during the purification process. In the case of Werner states, it is shown that quantum discord is increased after a round of purification protocol. Furthermore, quantum mutual information and classical correlation is also increased during this process.Wealso give an analytic expression for a class of higher dimensional states which have additive quantum discord.
Keywords
Cite
@article{arxiv.1101.2568,
title = {Dynamics of quantum discord in the purification process},
author = {Wei Song and Lin Chen and Ming Yang and Zhuo-Liang Cao},
journal= {arXiv preprint arXiv:1101.2568},
year = {2013}
}
Comments
4 pages, 3 figures