| HAL : hal-00000528, version 1 |
| arXiv : quant-ph/0307185 |
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| Entanglement of a Mesoscopic Field with an Atom induced by Photon Graininess in a Cavity |
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| Alexia Auffeves 1Paolo Maioli 1 |
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| (25/07/2003) |
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| 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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| 1 : | Laboratoire Kastler Brossel (LKB (Lhomond)) |
| CNRS : UMR8552 – Université Pierre et Marie Curie [UPMC] - Paris VI – Ecole normale supérieure de Paris - ENS Paris | |
| 2 : | Physique Corpusculaire et Cosmologie - Collège de France (PCC) |
| CNRS : UMR7553 – IN2P3 – Université Paris VII - Paris Diderot | |
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| Domaine | : | Physique/Physique Quantique |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00000528, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00000528 | |
| oai:hal.archives-ouvertes.fr:hal-00000528 | |
| Contributeur : Sébastien Gleyzes | |
| Soumis le : Vendredi 25 Juillet 2003, 17:30:37 | |
| Dernière modification le : Vendredi 25 Juillet 2003, 17:42:13 | |