Irreducible Cartesian Tensors. III. Clebsch‐Gordan Reduction
Irreducible Cartesian Tensors. III. Clebsch‐Gordan Reduction
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不可约笛卡尔张量 III。
DOI:
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发表时间:
1970
期刊:
影响因子:
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通讯作者:
J. Coope
中科院分区:
文献类型:
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作者:
J. Coope
The reduction of products of irreducible Cartesian tensors is formulated generally by means of 3‐j tensors. These are special cases of the invariant mappings discussed in Part II [J. A. R. Coope and R. F. Snider, J. Math. Phys. 11, 993 (1970)]. The 3‐j formalism is first developed for a general group. Then, the 3‐j tensors and spinors for the rotation group are discussed in detail, general formulas in terms of elementary invariant tensors being given. The 6‐j and higher n‐j symbols coincide with the familiar ones. Interrelations between Cartesian and spherical tensor methods are emphasized throughout.