Quantum entanglement estimation via symmetric measurement based positive maps
Quantum Physics
2024-05-21 v1
Abstract
We provide a class of positive and trace-preserving maps based on symmetric measurements. From these positive maps we present separability criteria, entanglement witnesses, as well as the lower bounds of concurrence. We show by detailed examples that our separability criteria, entanglement witnesses and lower bounds can detect and estimate the quantum entanglement better than the related existing results.
Keywords
Cite
@article{arxiv.2405.11741,
title = {Quantum entanglement estimation via symmetric measurement based positive maps},
author = {Jiaxin Li and Hongmei Yao and Shao-Ming Fei and Zhaobing Fan and Haitao Ma},
journal= {arXiv preprint arXiv:2405.11741},
year = {2024}
}
Comments
16 pages,2 figures