Entanglement witnesses from mutually unbiased measurements
Quantum Physics
2021-11-30 v1 Mathematical Physics
math.MP
Abstract
A new family of positive, trace-preserving maps is introduced. It is defined using the mutually unbiased measurements, which generalize the notion of mutual unbiasedness of orthonormal bases. This family allows one to define entanglement witnesses whose indecomposability depends on the characteristics of the associated measurement operators.
Keywords
Cite
@article{arxiv.2109.14069,
title = {Entanglement witnesses from mutually unbiased measurements},
author = {Katarzyna Siudzińska and Dariusz Chruściński},
journal= {arXiv preprint arXiv:2109.14069},
year = {2021}
}