Generation of Einstein-Podolsky-Rosen Pairs of Atoms

E. Hagley, X. Maître, G. Nogues, C. Wunderlich, M. Brune, J. M. Raimond, and S. Haroche
Phys. Rev. Lett. 79, 1 – Published 7 July 1997
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Abstract

Pairs of atoms have been prepared in an entangled state of the Einstein-Podolsky-Rosen (EPR) type. They were produced by the exchange of a single photon between the atoms in a high Q cavity. The atoms, entangled in a superposition involving two different circular Rydberg states, were separated by a distance of the order of 1 cm. At variance with most previous EPR experiments, this one involves massive particles. It can be generalized to three or more atoms and opens the way to new tests of nonlocality in mesoscopic quantum systems.

  • Received 6 March 1997

DOI:https://doi.org/10.1103/PhysRevLett.79.1

©1997 American Physical Society

Authors & Affiliations

E. Hagley, X. Maître, G. Nogues, C. Wunderlich, M. Brune, J. M. Raimond, and S. Haroche

  • Laboratoire Kastler Brossel, Département de Physique de l'Ecole Normale Supérieure, 24 rue Lhomond, F-75231 Paris Cedex 05, France

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Vol. 79, Iss. 1 — 7 July 1997

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