On maximal entanglement between two pairs in four-qubit pure states
Quantum Physics
2007-07-03 v2
Abstract
We show that the state with the highest known average two-particle von Neumann entanglement entropy proposed by Sudbery and one of the authors gives a local maximum of this entropy. We also show that this is not the case for an alternative highly entangled state proposed by Brown et al.
Keywords
Cite
@article{arxiv.0704.2961,
title = {On maximal entanglement between two pairs in four-qubit pure states},
author = {Stephen Brierley and Atsushi Higuchi},
journal= {arXiv preprint arXiv:0704.2961},
year = {2007}
}
Comments
Additional paragraph added referring to the proposed state in relation to bipartite entanglement and the concurrence. References added