Nonprobabilistic teleportation of field state via cavity QED

Carlos Renato De Carvalho (1) , Emerson S. Guerra (2) , Ginette Jalbert (1) , Jean Claude Garreau (3, 4)

1 IF / UFRJ - Instituto de Física da Universidade Federal do Rio de Janeiro
2 DF-UFRRJ - Departamento de Fisica, UFRRJ
3 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523
4 CERLA - Centre d'Etudes et de Recherches Lasers et Applications

In this article we discuss a teleportation scheme of coherent states of cavity field. The experimental realization proposed makes use of cavity quatum electrodynamics involving the interaction of Rydberg atoms with micromaser and Ramsey cavities. In our scheme the Ramsey cavities and the atoms play the role of auxiliary systems used to teleport the state from a micromaser cavity to another. We show that, even if the correct atomic detection fails in the first trials, one can succeed in teleportating the cavity field state if the proper measurement occurs in a later atom.

Mots clés: teleportation; entanglement; non-locality; Bell states; cavity QED

Domaines: Physique Quantique [quant-ph]

Carlos Renato De Carvalho, Emerson S. Guerra, Ginette Jalbert, Jean Claude Garreau. Nonprobabilistic teleportation of field state via cavity QED. Journal of Physics B: Atomic, Molecular and Optical Physics, 2007, 40, pp.1271-1282. ⟨10.1088/0953-4075/40/6/017⟩. ⟨hal-00135232⟩