Electromagnetically induced transparency of an interacting cold Rydberg ensemble

Details Electromagnetically induced transparency of an interacting cold Rydberg ensemble Electromagnetically induced transparency of an interacting cold Rydberg ensemble

2008-05-28

arxiv.org/abs/0805.4327v1

J. Phys. B. (41), 201002 (2008)

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

10.1088/0953-4075/41/20/201002

We study electromagnetically induced transparency (EIT) of a weakly interacting cold Rydberg gas. We show that the onset of interactions is manifest as a depopulation of the Rydberg state and numerically model this effect by adding a density-dependent non-linear term to the optical Bloch equations. In the limit of a weak probe where the depopulation effect is negligible, we observe no evidence of interaction induced decoherence and obtain a narrow Rydberg dark resonance with a linewidth of <600 kHz, limited by the Rabi frequency of the coupling beam

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