Entanglement witnesses and concurrence for multi-qubit states
Quantum Physics
2008-06-05 v1
Abstract
We establish a relation between concurrence and entanglement witnesses. In particular, we construct entanglement witnesses for three-qubit W and GHZ states in terms of concurrence and different set of operators that generate it. We also generalize our construction for multi-qubit states.
Cite
@article{arxiv.quant-ph/0701067,
title = {Entanglement witnesses and concurrence for multi-qubit states},
author = {Hoshang Heydari},
journal= {arXiv preprint arXiv:quant-ph/0701067},
year = {2008}
}
Comments
5 pages