Reflections upon separability and distillability
- 1 July 2002
- journal article
- research article
- Published by Taylor & Francis in Journal of Modern Optics
- Vol. 49 (8) , 1399-1418
- https://doi.org/10.1080/09500340110105975
Abstract
An abstract formulation is presented of the so-called Innsbruck-Hannover programme that investigates quantum correlations and entanglement in terms of convex sets. A unified description is given of optimal decompositions of quantum states and the optimization of witness operators that detect whether a given state belongs to a given convex set. The abstract formulation is illustrated with several examples, and relations between optimal entanglement witnesses and n -copy non-distillable states with non-positive partial transpose are discussed.Keywords
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