Study of the Distillability of Werner States Using Entanglement Witnesses and Robust Semidefinite Programs
Quantum Physics
2009-11-13 v1
Abstract
We use Robust Semidefinite Programs and Entanglement Witnesses to study the distillability of Werner states. We perform exact numerical calculations which show 2-undistillability in a region of the state space which was previously conjectured to be undistillable. We also introduce bases which yield interesting expressions for the {\em distillability witnesses} and for a tensor product of Werner states with arbitrary number of copies.
Keywords
Cite
@article{arxiv.quant-ph/0608095,
title = {Study of the Distillability of Werner States Using Entanglement Witnesses and Robust Semidefinite Programs},
author = {Reinaldo O. Vianna and Andrew C. Doherty},
journal= {arXiv preprint arXiv:quant-ph/0608095},
year = {2009}
}
Comments
16 pages, 2 figures