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Cooperative effects in the light and dark periods of two dipole-interacting atoms

By Almut Beige and Gerhard C. Hegerfeldt


If an atom is able to exhibit macroscopic dark periods, or electron shelving, then a driven system of two atoms has three types of fluorescence periods (dark, single and double intensity). We propose to use the average durations of these fluorescence types as a simple and easily accessible indicator of cooperative effects. As an example we study two dipole-interacting V systems by simulation techniques. We show that the durations of the two types of light periods exhibit marked separation-dependent oscillations and that they vary in phase with the real part of the dipole-dipole coupling constant.Comment: 16 pages, Latex, 7 Figure

Topics: Quantum Physics
Publisher: 'American Physical Society (APS)'
Year: 1999
DOI identifier: 10.1103/PhysRevA.59.2385
OAI identifier:

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