Hamburg 2009 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 30: Poster II
Q 30.40: Poster
Dienstag, 3. März 2009, 16:30–19:00, VMP 9 Poster
Generation of Greenberger-Horne-Zeilinger (GHZ), W, andcluster states using bimodal cavities — •Denis Gonta1, Thomas Radtke2, and Stephan Fritzsche3 — 1Max–Planck–Institut für Kernphysik, Postfach103980, D–69029 Heidelberg — 2Institut für Physik, Universität Kassel,Heinrich-Plett-Str. 40, D-34132 Kassel — 3Physikalisches Institut der UniversitätHeidelberg, Philosophenweg 12, D-69120 Heidelberg
In the framework of microwave cavity QED, we propose several schemes to engineer the entangled N-partite GHZ and W states [1] as well as the two-dimensional 2×N and 3×N cluster states. These states are produced between a chain of two-level Rydberg atoms in a deterministic way by using the bimodal cavities within the resonant atom-cavity interaction regime. In contrast to standard (single-mode) cavity schemes, such bimodal cavities possess two independent modes of the light field. In addition, we suggest some theoretical schemes to reveal the non-classical correlations of the entangled three- and four-partite GHZ and W states in order to ensure that no statistical (i.e. uncorrelated) mixtures of states have been produced. An extension of the scheme to produce two dimensional cluster states of arbitrary size is also possible.
[1] D. Gonta, S. Fritzsche, and T. Radtke, Phys. Rev. A 77, 062312 (2008).