Laser Spectroscopy and Electronic Structure Theory of Diatomic Molecules: Beyond Hund's Cases to Supermultiplets,Superconfigurations, and Channels (Physics)

本研究将实验与理论相结合，持续努力制定和测试双原子分子电子结构的新方法。一个关键因素是将电子状态的自然分组识别为“超状态”（超多重态、超构型和通道），这反映了将复杂的多体系统近似分解为弱相互作用的子系统。一个精心选择的零阶模型在分配、拟合和解释光谱时是有用的，但它最大的价值在于它揭示了可观测物、状态和分子之间的相互关系。分子电子结构的美妙之处在于在光谱的复杂性之下所隐藏的简单性和周期性，或者在于两个直观上相似的分子的电子能级图之间的巨大差异。

This research combines experiment and theory in a continuing effort to formulate and test new approaches to the electronic structure of diatomic molecules. A key element is the recognition of natural groupings of electronic states into "super-states" (supermultiplets, superconfigurations, and channels) which reflect an approximate factorization of a complex, many-body system into weakly interacting sub-systems. A well chosen zero-order model can be useful in assigning, fitting, and interpreting a spectrum, but its greatest value lies in its revelation of interrelationships between observables, states and molecules. The beauty of molecular electronic structure lies in the simplicity and periodicity concealed beneath the complexity of a spectrum or in the enormous differences between the electronic level diagrams of two intuitively similar molecules.