Nonlinear Inequalities and Entropy-Concurrence Plane
arXiv:quant-ph/0612177 · doi:10.1007/s10773-007-9574-0
Abstract
Nonlinear inequalities based on the quadratic Renyi entropy for mixed two-qubit states are characterized on the Entropy-Concurrence plane. This class of inequalities is stronger than Clauser-Horne-Shimony-Holt (CHSH) inequalities and, in particular, are violated "in toto" by the set of Type I Maximally-Entangled-Mixture States (MEMS I).