Concurrence of mixed bipartite quantum states in arbitrary dimensions
Quantum Physics
2009-11-10 v1
Abstract
We derive a lower bound for the concurrence of mixed bipartite quantum states, valid in arbitrary dimensions. As a corollary, a weaker, purely algebraic estimate is found, which detects mixed entangled states with positive partial transpose.
Cite
@article{arxiv.quant-ph/0403063,
title = {Concurrence of mixed bipartite quantum states in arbitrary dimensions},
author = {Florian Mintert and Marek Kus and Andreas Buchleitner},
journal= {arXiv preprint arXiv:quant-ph/0403063},
year = {2009}
}
Comments
accepted py PRL