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Exact computation of the 9-j symbols

✍ Scribed by Shan-Tao Lai; Ying-Nan Chiu


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
592 KB
Volume
70
Category
Article
ISSN
0010-4655

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✦ Synopsis


A useful algebraic formula for the 9-j symbol has been rewritten for convenient use on a computer. A simple FORTRAN program for the exact computation of 9-f 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-f symbols needed for the intensity and alignments of three-photon nonresonant transitions are tabulated. Approximate 9-f symbol values beyond the limitation of the computer can also be computed by this program. The computer code of the exact computation of 3-f, 6-f and 9-f symbols are available through electronic mail upon request.


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