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arXiv 0903.3799physics.atom-phphysics.gen-ph
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光缔合过程中的费什巴赫共振诱导Fano干涉

Feshbach Resonance Induced Fano Interference in Photoassociation

Bimalendu Deb, G. S. Agarwal

摘要:

我们考虑了两个自由原子在连续态接近磁场诱导的费什巴赫共振时的光缔合,并分析了光缔合中的Fano干涉。结果表明,Fano不对称参数$q$的最小值与激光强度无关,而最大值则明显依赖于激光强度.进一步讨论了在费什巴赫共振附近光缔合作用中存在非线性Fano效应的可能性。

英文摘要:

We consider photoassociation from a state of two free atoms when the continuum state is close to a magnetic field induced Feshbach resonance and analyze Fano interference in photoassociation. We show that the minimum in photoassociation profiles characterized by the Fano asymmetry parameter $q$ is independent of laser intensity, while the maximum explicitly depends on laser intensity. We further discuss the possibility of nonlinear Fano effect in photoassociation near a Feshbach resonance.

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