Universal covariant quantum cloning circuits for qubit entanglement manipulation
Quantum Physics
2015-05-14 v1
Abstract
We consider the entanglement manipulation capabilities of the universal covariant quantum cloner or quantum processor circuit for quantum bits. We investigate its use for cloning a member of a bipartite or a genuine tripartite entangled state of quantum bits. We find that for bipartite pure entangled states a nontrivial behavior of concurrence appears, while for GHZ entangled states a possibility of the partial extraction of bipartite entanglement can be achieved.
Cite
@article{arxiv.0911.4356,
title = {Universal covariant quantum cloning circuits for qubit entanglement manipulation},
author = {Levente Szabo and Matyas Koniorczyk and Peter Adam and Jozsef Janszky},
journal= {arXiv preprint arXiv:0911.4356},
year = {2015}
}
Comments
6 pages, 6 figures, RevTeX4