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arXiv quant-ph/9905090quant-ph
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原子光学的理论挑战:透射光栅对原子和分子的衍射

Theoretical challenges in atom optics: Atomic and molecular diffraction by transmission gratings

Gerhard C. Hegerfeldt, Thorsten Koehler

摘要:

几年前,人们首次实现了双缝和光栅对原子的衍射,标准的光波理论为实验提供了极好的描述。最近,弱结合分子甚至团簇的衍射已经被观察到。由于它们的尺寸和可能的分裂过程,光学波动理论不再适用,需要更复杂的方法。此外,表面效应可以改变原子和分子的衍射图案,使问题更加复杂。在这篇文章中,一个完全量子力学的方法来解决这些问题进行了讨论。

英文摘要:

A few years ago, diffraction of atoms by double slits and gratings was achieved for the first time, and standard optical wave-theory provided an excellent description of the experiments. More recently, diffraction of weakly bound molecules and even clusters has been observed. Due to their size and to possible breakup processes optical wave-theory is no longer adequate and a more sophisticated approach is needed. Moreover, surface effects, which can modify the diffraction pattern of atoms and molecules, give rise to further complications. In this article a fully quantum mechanical approach to these questions is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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