![]() ![]() Morrison, Atomic Many-Body Theory, 2 nd edn. Lifshitz, Quantum Mechanics - Course of Theoretical Physics, volume 3, 3 rd edn. Cowan, The theory of atomic structure and spectra (University of California press, Berkeley, 1981) Slater, Quantum theory of atomic structure (McGraw-Hill, New York, 1960) Shortley, The theory of atomic spectra (Cambridge University Press, Cambridge, 1935) Commins, Quantum mechanics: an experimentalist’s approach (Cambridge University Press, New York, 2014)Į.U. (Prentice Hall, Harlow, England, 2003)Į.D. Joachain, Physics of Atoms and Molecules, 2 nd edn. Salpeter, Quantum Mechanics of One- and Two-Electron Atoms (Springer-Verlag, Berlin, 1957)ī.H. Harris, Mathematical Methods for Physicists: A Comprehensive Guide, 7 th edn. ![]() Drake (Springer-Verlag, New York, 2006), p. Drake, in Springer Handbook of Atomic, Molecular, and Optical Physics, ed. Taylor, Journal of Physical and Chemical Reference Data 45, 043102 (2016) This chapter also establishes important nomenclature, extensively used throughout the book. Schrödinger’s cat, thought experiment designed by theoretical physicist Erwin Schrödinger in 1935 as an objection to the reigning Copenhagen interpretation of quantum mechanics. This makes the one-electron atom formalism relevant as a first stepping stone for the study of multielectron atoms, and we begin this book by a brief recapitulation of the hydrogen problem. For this, we use the central-field approximation, where zeroth order states are products of individual electron wave functions. For multielectron atoms, this book principally relies on perturbation theory. For a system with a nucleus and two or more electrons, we have a multibody problem, and a direct assault on the Schrödinger equation is harder. For any quantum mechanical problem, a preferred way to approach a problem is to formulate the Schrödinger equation and to solve it analytically. There is a fundamental difference between the theoretical approaches for atoms with at least two electrons, and systems with just a single electron. Erwin Schrödinger proposed the quantum mechanical model of the atom, which treats electrons as matter waves.
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