A Theory for Quantum Accelerator Modes in Atom Optics

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Unexpected accelerator modes were recently observed experimentally for cold cesium atoms when driven in the presence of gravity. A detailed theoretical explanation of this quantum effect is presented here. The theory makes use of invariance properties of the system, that are similar to the ones of solids, leading to a separation into independent kicked rotor problems. The analytical solution makes use of a limit that is very similar to the semiclassical limit, but with a small parameter that is not Planck's constant, but rather the detuning from the frequency that is resonant in absence of gravity.
26 pages, 9 figures

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Chaotic Dynamics, Statistical Mechanics, Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/80178

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nlin/0202047
 http://arxiv.org/abs/nlin/0202047

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arXiv