Two-qubit trace-norm geometric discord: the complete solution
Quantum Physics
2019-06-12 v1 Mathematical Physics
math.MP
Abstract
We present the complete solution of the problem of determination of trace-norm geometric discord for arbitrary two-qubit state. Final answer is achieved due to effective reduction of the problem to the study of critical points of certain mapping depending on projectors. Our results are illustrated on various, also new, families of two-qubit states and compared to already known special solutions.
Cite
@article{arxiv.1902.07297,
title = {Two-qubit trace-norm geometric discord: the complete solution},
author = {Piotr Lugiewicz and Andrzej Frydryszak and Lech Jakobczyk},
journal= {arXiv preprint arXiv:1902.07297},
year = {2019}
}
Comments
21 pages, no figures