Description of the 6-j and the 9-j Symbols in Terms of Small Numbers of 3-j Symbols
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概要
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The 6 -j symbol (the Racah coefficient) is described in a form of linear combina-tion of 3 - j symbols (Clebsch-Gordan coefficients). Deduction is based on the quasispin formalism combined with the state operator formalism. The result is used to ex-press the 9 - j symbol, expanded usually in terms o'f three 6 - j symbols, as a weightedsum over two 3 -j symbols. -the obtained expressions facilitate rapid evaluation ofthe 6 -j and the 9 -j symbols. An asymptotic exjcansion of the 9 -j symbol is dis-cussed.
- 社団法人日本物理学会の論文
- 1989-08-15
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