Broadcasting of entanglement via local copying
Quantum Physics
2009-10-30 v1
Abstract
We show that inseparability of quantum states can be partially broadcasted (copied, cloned) with the help of local operations, i.e. distant parties sharing an entangled pair of spin 1/2 states can generate two pairs of partially nonlocally entangled states using only local operations. This procedure can be viewed as an inversion of quantum purification procedures.
Keywords
Cite
@article{arxiv.quant-ph/9701028,
title = {Broadcasting of entanglement via local copying},
author = {V. Buzek and V. Vedral and M. B. Plenio and P. L. Knight and M. Hillery},
journal= {arXiv preprint arXiv:quant-ph/9701028},
year = {2009}
}
Comments
6 pages, to appear in Phys. Rev. A 1997