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Q: Quantenoptik und Photonik
Q 23: Quanteninformation II
Q 23.5: Vortrag
Dienstag, 23. März 2004, 17:30–17:45, HS 101
Entanglement of formation versus negative domains of Wigner functions. — •Alexander Wolf1, Jens Peder Dahl2, and Wolfgang Peter Schleich1 — 1Abteilung für Quantenphysik, Universität Ulm, D-89069 Ulm, Germany — 2Chemical Physics, Department of Chemistry,Technical University of Denmark, DTU 207, DK-2800 Kgs. Lyngby, Denmark
We analyze entanglement of formation and negative domains of Wigner functions in their dependence on the number of dimensions. Here, we focus on s -waves, that is, wave functions that only depend on a hyperradius. The special examples of a Gaussian and a shell wave function allow us to perform the calculations analytically. We find that the entanglement of formation and the negative parts of the Wigner function decrease with the number of dimensions.