Abstract
The calculation of electromagnetic transitions is a standard chapter of quantum mechanics, the essential formula being the famous “golden rule” (see, e.g., Heitler 1953, Messiah 1973). However, the resulting final expressions for field-free transitions or for Zeeman transitions which may be found in the literature cannot simply be applied to atoms in strong magnetic fields. This is because in the derivation of these expressions averaging processes over m are involved, whereas in strong magnetic fields the m-degeneracy is completely destroyed. Let us, therefore, begin by briefly reviewing the considerations, and the formulae, which are valid also for strong magnetic fields.
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© 1994 Springer-Verlag Berlin Heidelberg
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Ruder, H., Wunner, G., Herold, H., Geyer, F. (1994). Electromagnetic Transition Probabilities. In: Atoms in Strong Magnetic Fields. Astronomy and Astrophysics Library. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78820-8_6
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DOI: https://doi.org/10.1007/978-3-642-78820-8_6
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