Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 11: Quantum Information: Concepts and Methods II
Q 11.2: Vortrag
Montag, 8. März 2010, 16:45–17:00, E 214
Separability criteria for genuine multiparticle entanglement — •Otfried Gühne1 and Michael Seevinck2 — 1Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, A-6020 Innsbruck, Austria — 2Institute of History and Foundations of Science, Utrecht University, P.O Box 80.010, 3508 TA Utrecht, Netherlands
The characterization of genuine multiparticle correlations is an important problem in the field of quantum information theory. However, no systematic way to derive multiparticle entanglement criteria is known.
In this talk, we present a method to derive separability criteria for the different classes of multiparticle entanglement, especially genuine multiparticle entanglement. The resulting criteria are necessary and sufficient for certain families of states. Further, the criteria are superior to all known entanglement criteria for many other families; also they allow the detection of bound entanglement. We next demonstrate that they are easily implementable in experiments and discuss applications to the decoherence of multiparticle entangled states.