Entanglement distillation from quasifree Fermions
Quantum Physics
2015-03-13 v4 Mathematical Physics
math.MP
Abstract
We develop a scheme to distill entanglement from bipartite Fermionic systems in an arbitrary quasifree state. It can be applied if either one system containing infinite one-copy entanglement is available or if an arbitrary amount of equally prepared systems can be used. We show that the efficiency of the proposed scheme is in general very good and in some cases even optimal. Furthermore we apply it to Fermions hopping on an infinite lattice and demonstrate in this context that an efficient numerical analysis is possible for more then 10^6 lattice sites.
Cite
@article{arxiv.1003.2797,
title = {Entanglement distillation from quasifree Fermions},
author = {Zoltan Kadar and Michael Keyl and Dirk Schlingemann},
journal= {arXiv preprint arXiv:1003.2797},
year = {2015}
}
Comments
LaTeX, 32 pages, 10 figures. V2: Four footnotes and some references added V3: Completely rewritten. Many points clarified. Main result enhanced V4: Unused figure files deleted