A study of separability criteria for mixed three-qubit states
Quantum Physics
2015-03-17 v2 Mathematical Physics
math.MP
Abstract
We study the noisy GHZ-W mixture. We demonstrate some necessary but not sufficient criteria for different classes of separability of these states. It turns out that the partial transposition criterion of Peres and the criteria of G\"uhne and Seevinck dealing with matrix elements are the strongest ones for different separability classes of this 2 parameter state. As a new result we determine a set of entangled states of positive partial transpose.
Keywords
Cite
@article{arxiv.1101.3256,
title = {A study of separability criteria for mixed three-qubit states},
author = {Szilárd Szalay},
journal= {arXiv preprint arXiv:1101.3256},
year = {2015}
}
Comments
18 pages, 10 figures, PRA style