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Pré-Publication, Document De Travail Année : 2005

Back and forth transfer and coherent coupling in a cold Rydberg dipole gas

Résumé

Coupling by the resonant dipole-dipole energy transfer between cold cesium Rydberg atoms is investigated using time-resolved narrow-band de-excitation spectroscopy. This technique combines the advantage of efficient Rydberg excitation with high-resolution spectroscopy at variable interaction times. The coherent character of the process is studied by back and forth transfer in the np+np <--> ns+(n+1)s reaction. The evolution of coherence is mostly due to the motion between the atoms induced by the dipole-dipole interaction. Dipole-dipole interaction is observed spectroscopically as avoided level crossing.

Dates et versions

hal-00009284 , version 1 (30-09-2005)

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Marcel Mudrich, Nassim Zahzam, Thibault Vogt, Daniel Comparat, Pierre Pillet. Back and forth transfer and coherent coupling in a cold Rydberg dipole gas. 2005. ⟨hal-00009284⟩
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