Bounds on Multipartite Concurrence and Tangle
Quantum Physics
2016-08-05 v1
Abstract
We present an analytical lower bound of multipartite concurrence based on the generalized Bloch representations of density matrices. It is shown that the lower bound can be used as an effective entanglement witness of genuine multipartite entanglement. Tight lower and upper bounds for multipartite tangles are also derived. Since the lower bounds depend on just part of the correlation tensors, the result is experimentally feasible.
Cite
@article{arxiv.1608.01592,
title = {Bounds on Multipartite Concurrence and Tangle},
author = {Jing Wang and Ming Li and Hongfang Li and Shao-Ming Fei and Xianqing Li-Jost},
journal= {arXiv preprint arXiv:1608.01592},
year = {2016}
}
Comments
10 pages,no figure