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Pré-Publication, Document De Travail Année : 2003

Entanglement of a Mesoscopic Field with an Atom induced by Photon Graininess in a Cavity

Résumé

We observe that a mesoscopic field made of several tens of microwave photons exhibits quantum features when interacting with a single Rydberg atom in a high-Q cavity. The field is split into two components whose phases differ by an angle inversely proportional to the square root of the average photon number. The field and the atomic dipole are phase-entangled. These manifestations of photon graininess vanish at the classical limit. This experiment opens the way to studies of large Schrödinger cat states at the quantum-classical boundary.
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Dates et versions

hal-00000528 , version 1 (25-07-2003)

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Alexia Auffeves, Paolo Maioli, Tristan Meunier, Sébastien Gleyzes, Gilles Nogues, et al.. Entanglement of a Mesoscopic Field with an Atom induced by Photon Graininess in a Cavity. 2003. ⟨hal-00000528⟩
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