The ZEKE-effect in cold Rydberg gases

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Cold, dense Rydberg gases produced in a cold-atom trap are investigated using spectroscopic methods and time-resolved electron counting. On the discrete Rydberg resonances we observe large trap losses and long lasting electron emission from the Rydberg gas (>30ms). Our observations are explained by quasi-elastic l-mixing collisions between Rydberg atoms and slow electrons that lead to the population of long-lived high-angular-momentum Rydberg states. These atoms thermally ionize slowly and with large probabilities, leading to the observed effects.
5 pages, 7 figures

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Atomic Physics, Plasma Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/83450

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/physics/0003109
 http://arxiv.org/abs/physics/0003109

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arXiv