Open Access
The Theory of Atomic Spectra
Edward U. Condon,G. H. Shortley +1 more
- pp 460
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TLDR
In this paper, the quantum mechanical method is applied to the theory of complex spectra and the Russell-Saunders case is used to obtain the energy levels of one-electron spectra.Abstract:
1. Introduction 2. The quantum mechanical method 3. Angular momentum 4. The theory of radiation 5. One-electron spectra 6. The central-field approximation 7. The Russell-Saunders case: energy levels 8. The Russell-Saunders case: eigenfunctions 9. The Russell-Saunders case: line strengths 10. Coupling 11. Intermediate coupling 12. Transformations in the theory of complex spectra 13. Configurations containing almost closed shells. X-rays 14. Central fields 15. Configuration interaction 16. The Zeeman effect 17. The Stark effect 18. The nucleus in atomic spectra Appendix. Universal constants and natural atomic units.read more
Citations
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A general pseudopotential model for molecules with many valence electrons
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TL;DR: In this article, a theoretical model based on the use of pseudopotentials derived from atomic SCF calculations has been proposed to simulate ab initio all-electron calculations on molecules containing heavy atoms with many core electrons.
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The theory of the spectra of europium salts
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Direct absorption measurement of the spin–orbit splitting and 2P1/2 radiative lifetime in atomic fluorine (2p5)
Alan C. Stanton,Charles E. Kolb +1 more
TL;DR: In this article, the first direct measurement of the fluorine atom ground state fine structure transition was reported by diode laser absorption spectroscopy, which was measured with high precision relative to a pure rotational transition in H2O, establishing the fine structure energy splitting as 404.082 cm−1 ± 0.025.
Journal ArticleDOI
Clebsch-gordan coefficients, viewed from different sides
Ya A Smorodinskiĭ,L. A. Shelepin +1 more
TL;DR: In this paper, a review of the application of the Clebsch-Gordan coefficients in physics is presented, which is an adequate formalism for the investigation of complicated physical systems (atoms, nuclei, molecules, hadrons, radiation) and how this theory can be applied to elementary particle symmetries.
Book ChapterDOI
The Measurement of Lifetimes of Free Atoms, Molecules, and Ions
TL;DR: In this paper, the lifetime measurements of free atoms, molecules, and ions were studied in a multichannel system, where the lifetime resolution is limited by the combined effects of the finite time taken for the gun pulse cutoff and the finite transit time of electrons across the source.