Detecting the concurrence of an unknown state with a single observable
Quantum Physics
2011-04-07 v1
Abstract
While the detection of entanglement has been proved already to be quite a difficult task, experimental quantification of entanglement is even more challenging. In this work, we derive an analytical lower bound for the concurrence of a bipartite mix quantum state in arbitrary dimension. The lower bound is experimentally implementable in a feasible way, which enabling quantification of entanglement in a broad variety of cases
Cite
@article{arxiv.1104.1006,
title = {Detecting the concurrence of an unknown state with a single observable},
author = {Zhi-Hao Ma and Zhi-Hua Chen and Jing-Ling Chen},
journal= {arXiv preprint arXiv:1104.1006},
year = {2011}
}