The entanglement criteria based on equiangular tight frames
Quantum Physics
2023-07-19 v1
Abstract
Finite tight frames play an important role in miscellaneous areas, including quantum information theory. Here we apply a class of tight frames, equiangular tight frames, to address the problem of detecting the entanglement of bipartite states. Here we derive some entanglement criteria based on positive operator-valued measurements built from equiangular tight frames. We also present a class of entanglement witnesses based on the equiangular tight frames. At last, we generalize the entanglement criterion for bipartite systems to multipartite systems.
Cite
@article{arxiv.2307.08914,
title = {The entanglement criteria based on equiangular tight frames},
author = {Xian Shi},
journal= {arXiv preprint arXiv:2307.08914},
year = {2023}
}