Hilbert-Schmidt measure of pairwise quantum discord for three-qubit $X$ states
Quantum Physics
2016-01-20 v1
Abstract
The Hilbert-Schmidt distance between a mixed three-qubit state and its closest state is used to quantify the amount of pairwise quantum correlations in a tripartite system. Analytical expressions of geometric quantum discord are derived. A particular attention is devoted to two special classes of three-qubit states. They include three-qubit states of , and Bell type. We also discuss the monogamy property of geometric quantum discord in some mixed three-qubit systems.
Keywords
Cite
@article{arxiv.1512.01772,
title = {Hilbert-Schmidt measure of pairwise quantum discord for three-qubit $X$ states},
author = {M. Daoud and R. Ahl Laamara and S. Seddik},
journal= {arXiv preprint arXiv:1512.01772},
year = {2016}
}
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24 pages