Entanglement Witnesses Based on Symmetric Informationally Complete Measurements
Quantum Physics
2020-11-04 v1
Abstract
We study entanglement witness and present a construction of entanglement witnesses in terms of the symmetric informationally complete measurements (SIC-POVM). The capability of our witness is shown by some examples and it can be found this witness detects more entanglement than previous separability method given also by SIC-POVM. What's more, comparing with the dimension dependence of SIC-POVM, we also give the entanglement witnesses can be always constructed from general symmetric informationally complete measurements (GSIC-POVM).
Keywords
Cite
@article{arxiv.2011.01705,
title = {Entanglement Witnesses Based on Symmetric Informationally Complete Measurements},
author = {Tao Li and Le-Min Lai and Deng-Feng Liang and Shao-Ming Fei and Zhi-Xi Wang},
journal= {arXiv preprint arXiv:2011.01705},
year = {2020}
}