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Q: Fachverband Quantenoptik und Photonik

Q 13: Quanteninformation: Konzepte III

Q 13.4: Vortrag

Montag, 2. März 2009, 17:15–17:30, VMP 6 HS-D

Triplet-like correlation symmetry of 2-mode continuous variable entangled states — •Gerd Leuchs, Ruifang Dong, and Denis Sych — Institute for Optics, Information and Photonics, Max-Planck Institute for Science of Light, University Erlangen-Nuernberg, Guenther-Scharowsky-Str. 1, 91058, Erlangen, Germany

We report on a remarkable similarity of arbitrary two-mode continuous variable entangled states and two-qubit triplet Bell states. Both are shown to have the similar "mirror-reflection" correlation symmetry. By analogy with the qubit language we refer to the two-mode continuous variable entangled states as being triplet-like. The geometry of these quantum states is closely related to the so-called UxU* symmetry and these states show corresponding correlations. This triplet-like geometrical correlation property is demonstrated experimentally in the continuous variable regime for the first time.