English

Distillability of Inseparable Quantum Systems

Quantum Physics 2008-02-03 v2

Abstract

We apply the inseparability criterion for 2×22 \times 2 systems, local filtering and Bennett et al. purification protocol [Phys. Rev. Lett. {\bf 76}, 722 (1996)] to show how to distill {\it any} inseparable 2×22\times 2 system. The extended protocol is illustrated geometrically by means of the state parameters in the Hilbert-Schmidt space.

Keywords

Cite

@article{arxiv.quant-ph/9607009,
  title  = {Distillability of Inseparable Quantum Systems},
  author = {Michal Horodecki and Pawel Horodecki and Ryszard Horodecki},
  journal= {arXiv preprint arXiv:quant-ph/9607009},
  year   = {2008}
}

Comments

Revtex, 4 pages (in twocolumn format), introduction and conclusion are slightly modified; one postscript figure available at request from [email protected]