Atomic Structure and Lifetimes
A Conceptual Approach

This book presents an approach to introductory graduate courses on atomic structure. The author's approach utilizes conceptually powerful semiclassical modeling methods, and demonstrates the degree to which the Maslov-indexed EBK quantization elucidates the quantum mechanical formulation of level energies and lifetimes. It merges this with an update and extension of semiempirical data systematizations developed by Bengt Edlén to describe complex atoms, and adapts them to include the specification of lifetimes. The text emphasizes the historical basis of the nomenclature and methodologies of spectroscopy. However, interaction mechanisms are presented deductively, based on quantum mechanical and field theoretical models, rather than tracing their indirect paths of discovery. Many worked examples provide applications to areas such as astrophysics, hyperfine structure, and coherent anisotropic excitation. The book presents a firm foundation for specialists in atomic physics, as well as a capstone application for specialists in astrophysics, chemistry, condensed matter, and other related fields.

1. Introduction; 2. Classical position probability densities for periodic systems; 3. Semiempirical parametrization of energy level data; 4. The vector model of angular momentum; 5. The intermediate coupling model; 6. Electric dipole radiation; 7. Line strengths in two-valence electron systems; 8. Magnetic dipole transitions; 9. Absorption of radiation; 10. Time-resolved measurements; 11. Hyperfine structure; 12. Electrostatic polarizabilities and long range interactions; 13. Coherence and anisotropic excitation.