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

Marcel Mudrich·Nassim Zahzam·Thibault Vogt·Daniel Comparat·Pierre Pillet
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Abstract

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. Decoherence in the ensemble has two different origins: the atom motion induced by dipole-dipole interaction and the migration of the s-Rydberg excitation in the environment of p-Rydberg atoms.

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Marcel Mudrich, Nassim Zahzam, Thibault Vogt, Daniel Comparat, Pierre Pillet. 2006-04-19. Back and forth transfer and coherent coupling in a cold Rydberg dipole gas. https://doi.org/10.1103/physrevlett.95.233002

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