| 单词 |
wigner-eckart theorem |
| 释义 |
Wigner-Eckart theorem
Wigner-Eckart theorem[′wig·nər ′ek·ərt ‚thir·əm] (quantum mechanics) A theorem in the quantum theory of angular momentum which states that the matrix elements of a tensor operator can be factored into two quantities, the first of which is a vector-coupling coefficient, and the second of which contains the information about the physical properties of the particular states and operator, and is completely independent of the magnetic quantum numbers. |
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