Hannover 2003 – scientific programme
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Q: Quantenoptik
Q 28: Poster: Quanteninformation
Q 28.16: Poster
Tuesday, March 25, 2003, 16:30–18:30, Lichthof
Generalized concurrence: Application to separability and distillability — •Florian Hulpke1, Maciej Lewenstein1, J. Ignacio Cirac2, and Barbara Kraus2 — 1Institut für Theoretische Physik, Universität Hannover, Appelstr. 2, 30167 Hannover — 2Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str., 85748 Garching
We investigate the properties of a quantity denoted as pseudoconcurrence, which is based on the generalized concurrence of [1][2][3]. This quantity gives us another method to quantify entanglement by the way, that it provides us with a powerful separability check which is better than the criterion of the partial transposition.
[1] W.K. Wootters Phys. Rev. Lett., 80, 2245
[2] K. Audenaert; F. Verstraete; B. De Moor Phys. Rev. A 64, 052304
[3] P. Badziag; P. Deuar; M. Horodecki; P. Horodecki;R. Horodecki; J. Mod. Opt. 49,1289