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arXiv physics/0506104physics.atom-ph
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极性分子强场寻态的长程散射共振

Long range scattering resonances in strong-field seeking states of polar molecules

Christopher Ticknor, John L. Bohn

摘要:

我们提出了第一步了解极性分子在强电场寻求状态的超冷散射性质。我们已经发现,弹性截面显示出准规则的一组潜在的电场的函数的共振,这可能提供有关分子间相互作用的详细信息。我们说明这些共振在一个“玩具”模型组成的纯偶极子,并在更现实的物理系统。为了分析这些共振,我们使用一个简单的WKB近似的本征相位,这证明了合理的准确性和意义。斯塔克效应和偶极相互作用的一般处理也提出。

英文摘要:

We present first steps toward understanding the ultracold scattering properties of polar molecules in strong electric field-seeking states. We have found that the elastic cross section displays a quasi-regular set of potential resonances as a function of the electric field, which potentially offers intimate details about the inter-molecular interaction. We illustrate these resonances in a ``toy'' model composed of pure dipoles, and in more physically realistic systems. To analyze these resonances, we use a simple WKB approximation to the eigenphase, which proves both reasonably accurate and meaningful. A general treatment of the Stark effect and dipolar interactions is also presented.

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