Comment on "Witnessed entanglement and the geometric measure of quantum discord"
arXiv:1301.1961 · doi:10.1103/PhysRevA.87.016301
Abstract
In a recent article [Phys. Rev. A 86, 024302 (2012)], the authors have derived some hierarchy relations between geometric discord and entanglement (measured by negativity and its square). We point out that these results are incorrect and give analytic counterexamples. We also discuss briefly the reason for such violations.
1+ page, Accepted in PRA
References in corpus (3)
Cited by in corpus (13)
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