Nonlocality of three-qubit Greenberger-Horne-Zeilinger–symmetric states
Nonlocality of three-qubit Greenberger-Horne-Zeilinger–symmetric states
Mixed states appear naturally in experiment over pure states. So for studying different notions of nonlocality and their relation with entanglement in realistic scenarios, one needs to consider mixed states. In a recent article [Phys. Rev. Lett. \textbf{108}, 020502 (2012)], a complete characterization of entanglement of an entire class of …