Details

Autor(en) / Beteiligte

• Lai, Shan-Tao
• Chiu, Ying-Nan

Titel

Exact computation of the 9-j symbols

Ist Teil von

• Computer physics communications, 1992, Vol.70 (3), p.544-556

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

1992

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• A useful algebraic for the 9- j symbol has been written for inconvinient use on a computer. A simple FORTRAN program for the exact computation of 9- j symbols has been written for the VAX with VMS version V5.4-1 according to this formula. The results agree with the approximate values in existing literature. Some specific values of 9- j symbols needed for the intensity and alignments of three-photon nonresonant transitions are tabulated. Approximate 9- j symbol values beyond the limitation of the computer can also be computed by this program. The computer code of the exact computation of 3- j, 6- j and 9- j symbols are through electronic mail upon request.