Abstract
In the last chapter on symmetries, rotational invariance was not discussed, not because it is unimportant, but because it is all too important and deserves a chapter on its own. The reason is that most of the problems we discuss involve a single particle (which may be the reduced mass) in an external potential, and whereas translational invariance of H implies that the particle is free, rotational invariance of H leaves enough room for interesting dynamics. We first consider two dimensions and then move on to three.
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© 1994 Springer Science+Business Media, LLC
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Shankar, R. (1994). Rotational Invariance and Angular Momentum. In: Principles of Quantum Mechanics. Springer, New York, NY. https://doi.org/10.1007/978-1-4757-0576-8_12
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DOI: https://doi.org/10.1007/978-1-4757-0576-8_12
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4757-0578-2
Online ISBN: 978-1-4757-0576-8
eBook Packages: Springer Book Archive