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Wigner-Eckart theorem. In DICTIOUS you will not only get to know all the dictionary meanings for the word
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English
Etymology
Named after physicists Eugene Wigner and Carl Eckart.
Proper noun
Wigner-Eckart theorem
- A theorem of representation theory and quantum mechanics, stating that matrix elements of spherical tensor operators on the basis of angular momentum eigenstates can be expressed as the product of two factors, one of which is independent of angular momentum orientation, and the other a Clebsch-Gordan coefficient.