Abstract
This chapter affords a brief summary of the quantum theory of angular momentum. As the angular momentum of a charged particle is proportional to its magnetization, this subject is at the core of the theory of magnetism. We shall show that motional angular momentum is inadequate, and introduce spin angular momentum. We shall develop operator techniques expressing angular momentum or spin operators in terms of more primitive fermion or boson operators. The topics of spin-one-half and spin-one are treated individually, for use in subsequent chapters on the theory of magnetism.
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References
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© 1981 Springer-Verlag Berlin Heidelberg
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Mattis, D.C. (1981). Quantum Theory of Angular Momentum. In: The Theory of Magnetism I. Springer Series in Solid-State Sciences, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83238-3_3
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DOI: https://doi.org/10.1007/978-3-642-83238-3_3
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-18425-6
Online ISBN: 978-3-642-83238-3
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