Bell diagonal states with maximal abelian symmetry

Dariusz Chruscinski, Andrzej Kossakowski

Published 2010-11-02Version 1

We provide a simple class of 2-qudit states for which one is able to formulate necessary and sufficient conditions for separability. As a byproduct we generalize well known construction provided by Horodecki et al. for d=3. It is hoped that these states with known separability/entanglement properties may be used to test various notions in entanglement theory.