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APS » Journals » Phys. Rev. A » Volume 64 » Issue 5
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Phys. Rev. A 64, 050301(R) (2001) [4 pages]

Controlled entanglement of two field modes in a cavity quantum electrodynamics experiment

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A. Rauschenbeutel, P. Bertet, S. Osnaghi, G. Nogues, M. Brune, J. M. Raimond, and S. Haroche
Laboratoire Kastler Brossel, Unité Mixte de Recherche No. 8552, associeé au CNRS, Département de Physique de l’Ecole Normale Supérieure, Université Pierre et Marie Curie, 24 rue Lhomond, F-75231 Paris Cedex 05, France

Received 14 March 2001; published 2 October 2001

Using a single circular Rydberg atom, we have prepared two modes of a superconducting cavity in a maximally entangled state. The two modes share a single photon. The entanglement is revealed by a second atom probing the correlations between the two modes after a delay. This experiment opens interesting perspectives for quantum information manipulation and fundamental tests of quantum theory.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.050301
DOI:
10.1103/PhysRevA.64.050301
PACS:
03.67.-a, 03.65.-w, 42.50.-p
 
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