Efficient $6j$ symbol evaluations for atomic calculations

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We have developed an efficient tabulation scheme to evaluate $6j$ symbol for atomic calculations. The scheme is appropriate for coupled-cluster based calculations. In particular, for perturbed coupled-clusters calculations, which has another perturbation in addition to the residual Coulomb interaction. The scheme relies on the symmetry of the $6j$ symbol and the triangular conditions.
5 pages and 6 figures

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Atomic Physics, Chemical Physics, Computational Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/161247

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0805.2723
 http://arxiv.org/abs/0805.2723

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arXiv