Genralized Robustness of Entanglement
Quantum Physics
2009-11-10 v2
Abstract
The robustness of entanglement results of Vidal and Tarrach considered the problem whereby an entangled state is mixed with a separable state so that the overall state becomes non-entangled. In general it is known that there are also cases when entangled states are mixed with other entangled states and where the sum is separable. In this paper, we treat the more general case where entangled states can be mixed with any states so that the resulting mixture is unentangled. It is found that entangled pure states for this generalized case have the same robustness as the restricted case of Vidal and Tarrach.
Keywords
Cite
@article{arxiv.quant-ph/0304009,
title = {Genralized Robustness of Entanglement},
author = {Michael Steiner},
journal= {arXiv preprint arXiv:quant-ph/0304009},
year = {2009}
}
Comments
Final version. Editorial changes and references added to independent work