Cold Atom Space Clock with Counter-Propagating Atoms

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We discuss the feasibility to realize a space cold atom clock with counter-propagating cold atoms in microgravity. The design of the space clock is based on atomic beam clock with a Ramsey cavity, except a magneto-optical trap (MOT) is placed at each side. Cold atoms are launched from MOTs at both side of the clock simultaneously and move at counter-direction towards each other. The velocity of launched atoms is precisely controlled to the Ramsauer-Townsend resonance so that no additional collision frequency shift is taken place. Such a configuration can efficiently cancel the frequency shift led from cavity phase shift and increase the signal to noise.
8 pages, 1 figure

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Atomic Physics, Instrumentation and Detectors

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http://salesiana.dossiersoluciones.com/handle/123456789/220436

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0902.3066
 http://arxiv.org/abs/0902.3066

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arXiv