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arXiv 0806.2913quant-ph
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冷极性分子的表面诱导加热

Surface-induced heating of cold polar molecules

Stefan Yoshi Buhmann, M. R. Tarbutt, Stefan Scheel, E. A. Hinds

摘要:

基于宏观量子电动力学,研究了有限温度下双原子分子的转动和振动加热。内部分子演化受依赖于温度和位置的转变速率控制。分析和数值方法被用来研究加热的几个相关的分子附近的各种表面。我们确定的临界距离,在该表面本身成为加热的主要来源,我们调查的长期和短期的行为之间的过渡的加热率。提出了一个简单的公式,可以用来估计其他感兴趣的分子的表面诱导加热速率。我们还考虑了加热如何取决于表面的厚度和成分。

英文摘要:

We study the rotational and vibrational heating of diatomic molecules placed near a surface at finite temperature on the basis of macroscopic quantum electrodynamics. The internal molecular evolution is governed by transition rates that depend on both temperature and position. Analytical and numerical methods are used to investigate the heating of several relevant molecules near various surfaces. We determine the critical distances at which the surface itself becomes the dominant source of heating and we investigate the transition between the long-range and short-range behaviour of the heating rates. A simple formula is presented that can be used to estimate the surface-induced heating rates of other molecules of interest. We also consider how the heating depends on the thickness and composition of the surface.

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