Detection of multipartite entanglement via quantum Fisher information
Quantum Physics
2022-01-21 v1
Abstract
In this paper, we focus on two different kinds of multipartite correlation, -nonseparability and -partite entanglement, both of which can describe the essential characteristics of multipartite entanglement. We propose effective methods to detect -nonseparability and -partite entanglement in terms of quantum Fisher information. We illustrate the significance of our results and show that they identify some -nonseparability and -partite entanglement that cannot be identified by known criteria by several concrete examples.
Keywords
Cite
@article{arxiv.2103.07141,
title = {Detection of multipartite entanglement via quantum Fisher information},
author = {Yan Hong and Xianfei Qi and Ting Gao and Fengli Yan},
journal= {arXiv preprint arXiv:2103.07141},
year = {2022}
}