Indecomposable optimal entanglement witnesses in C4 {\otimes} C4
Quantum Physics
2012-04-25 v1 Mathematical Physics
math.MP
Abstract
We provide two 1-parameter families of indecomposable entanglement witnesses in C4 {\otimes} C4. Following recent paper by Ha and Kye [Phys. Rev. A 84, 024302 (2011)] we show that these EWs are optimal and hence provide the strongest tool in entanglement theory to discriminate between separable and entangled states. As a byproduct we show that these EWs detect quantum entanglement within a family of generalized Horodecki states.
Keywords
Cite
@article{arxiv.1204.5283,
title = {Indecomposable optimal entanglement witnesses in C4 {\otimes} C4},
author = {Dariusz Chruściński and Filip A. Wudarski},
journal= {arXiv preprint arXiv:1204.5283},
year = {2012}
}
Comments
4 pages