通过圆锥相交控制Fano轮廓
Controlling Fano Profiles via Conical Intersections
摘要：
本文提出了双通道系统Fano共振的从头计算分析模型。我们发现，线形参数q的因素到一个背景的贡献q_b，它只依赖于非耦合的通道和相互作用的贡献q_i，这是由通道之间的耦合影响，揭示了如何整体线形参数q可以控制。特别是，我们表明如何圆锥形交叉的背景相移有一个重要的作用，在q_b和q_i之间的相互作用。最后，对量子台球的Fano透射分布通过q_b和q_i进行了控制.
英文摘要：
An ab initio analytical model for Fano resonances in two-channel systems is presented. We find that the lineshape parameter q factors into a background contribution q_b that depends only on the uncoupled channels and an interaction contribution q_i that is affected by the coupling between the channels, revealing how the overall lineshape parameter q may be controlled. In particular, we show how conical intersections of the background phase shifts have an important role in the interplay between q_b and q_i. Finally, control of Fano transmission profiles through q_b and q_i is demonstrated for quantum billiards.
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