Dresden 2011 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 7: Quantum Information: Concepts and Methods 1
Q 7.1: Talk
Monday, March 14, 2011, 10:30–10:45, SCH A118
Verifying W-entanglement — •Hermann Kampermann1, Otfried Gühne2, Colin Wilmott1, and Dagmar Bruß1 — 1Theoretische Physik III, Universität Düsseldorf — 2Fachbereich Physik, Universität Siegen
We present a simple algorithm for finding specific decompositions of mixed density operators. The pure states in such decompositions belong to the same SLOCC entanglement class. This procedure can help to prove separability or to characterize specific types of entanglement. We use this algorithm to verify for some three qubit states W-type entanglement, i.e. states which can be written as a convex combination of pure W-states and which are genuine multipartite entangled.