Broadcasting of entanglement in three-particle GHZ state via quantum copying
Quantum Physics
2015-06-26 v1
Abstract
We introduce entanglement measures to describe entanglement in a three-particle system and apply it to studying broadcasting of entanglement in three-particle GHZ state. We show that entanglement of three-qubit GHZ state can be partially broadcasted with the help of local or non-local copying processes. It is found that non-local cloning is much more efficient than local cloning for the broadcasting of entanglement.
Keywords
Cite
@article{arxiv.quant-ph/0005070,
title = {Broadcasting of entanglement in three-particle GHZ state via quantum copying},
author = {Zhao-Yang Tong and Le-Man Kuang},
journal= {arXiv preprint arXiv:quant-ph/0005070},
year = {2015}
}
Comments
9 pages, to appear in Chin. Phys. Lett. (2000)