Recovery of entanglement lost in entanglement manipulation
Quantum Physics
2009-10-31 v2
Abstract
When an entangled state is transformed into another one with probability one by local operations and classical communication, the quantity of entanglement decreases. This letter shows that entanglement lost in the manipulation can be partially recovered by an auxiliary entangled pair. As an application, a maximally entangled pair can be obtained from two partially entangled pairs with probability one. Finally, this recovery scheme reveals a fundamental property of entanglement relevant to the existence of incomparable states.
Keywords
Cite
@article{arxiv.quant-ph/9911019,
title = {Recovery of entanglement lost in entanglement manipulation},
author = {Fumiaki Morikoshi},
journal= {arXiv preprint arXiv:quant-ph/9911019},
year = {2009}
}
Comments
4 pages, 2 figures, REVTeX; minor corrections