Entanglement distillation from quasifree Fermions

Details Entanglement distillation from quasifree Fermions Entanglement distillation from quasifree Fermions

2010-03-14

arxiv.org/abs/1003.2797v4

Physics

Quantum Physics

LaTeX, 32 pages, 10 figures. V2: Four footnotes and some references added V3: Completely rewritten. Many points clarified. Mai

Scientific paper

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.

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