Superactivation of Bound Entanglement
Quantum Physics
2007-05-23 v2
Abstract
We show that, in a multi-party setting, two non-distillable (bound-entangled) states tensored together can make a distillable state. This is an example of true superadditivity of distillable entanglement. We also show that unlockable bound-entangled states cannot be asymptotically unentangled, providing the first proof that some states are truly bound-entangled in the sense of being both non-distillable and non-separable asymptotically.
Keywords
Cite
@article{arxiv.quant-ph/0005117,
title = {Superactivation of Bound Entanglement},
author = {Peter W. Shor and John A. Smolin and Ashish V. Thapliyal},
journal= {arXiv preprint arXiv:quant-ph/0005117},
year = {2007}
}
Comments
4 pages revtex, resubmitted with improvements after referee