Reflections upon separability and distillability
量子物理
2009-11-07 v1
摘要
We present an abstract formulation of the so-called Innsbruck-Hannover programme that investigates quantum correlations and entanglement in terms of convex sets. We present a unified description of optimal decompositions of quantum states and the optimization of witness operators that detect whether a given state belongs to a given convex set. We illustrate the abstract formulation with several examples, and discuss relations between optimal entanglement witnesses and n-copy non-distillable states with non-positive partial transpose.
引用
@article{arxiv.quant-ph/0110081,
title = {Reflections upon separability and distillability},
author = {D. Bruss and J. I. Cirac and P. Horodecki and F. Hulpke and B. Kraus and M. Lewenstein and A. Sanpera},
journal= {arXiv preprint arXiv:quant-ph/0110081},
year = {2009}
}
备注
12 pages, 7 figures, proceedings of the ESF QIT Conference Gdansk, July 2001, submitted to special issue of J. Mod. Opt