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Reflections upon separability and distillability
D. Bruss, J. I. Cirac, P. Horodecki +4
We present an abstract formulation of the so-called Innsbruck-Hannover programme that investigates quantum correlations and entanglement in terms of convex sets. We present a unifi…
Classification of mixed three-qubit states
A. Acin, D. Bruss, M. Lewenstein +1
We introduce a classification of mixed three-qubit states, in which we define the classes of separable, biseparable, W- and GHZ-states. These classes are successively embedded into…
Separability Properties of Three-mode Gaussian States
Geza Giedke, Barbara Kraus, Maciej Lewenstein +1
We derive a necessary and sufficient condition for the separability of tripartite three mode Gaussian states, that is easy to check for any such state. We give a classification of…
Bound entanglement for continuous variables is a rare phenomenon
Pawel Horodecki, J. Ignacio Cirac, Maciej Lewenstein
We discuss the notion of bound entanglement (BE) for continuous variables (CV). We show that the set of non--distillable states (NDS) for CV is nowhere dense in the set of all stat…