Another formula for calculating Clebsch Gordan coefficients

This article presents the derivation of a comprehensive formula for the Clebsch-Gordan coefficients in a quantum system. The formula is derived by employing the iterative application of angular momentum ladder operators on each defined angular momentum subspace to reconstruct the states in the total angular momentum base. The novelty aspect of this approach lies in the utilization of the $J{+}$ raising operator to reconstruct subspaces characterized by non-maximal total angular momentum, in contrast to the conventional Gram-Schmidt procedure typically employed in the standard literature.This enables us to derive a new formula that provides an alternative approach for computing these coefficients, complementing the existing ones found in the literature.

Publication Details

Journal
ArXiv.org
Published
2025-09-03
Primary Topic
Geochemistry and Geologic Mapping
Type
article
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Another formula for calculating Clebsch Gordan coefficients

ArXiv.org
Geochemistry and Geologic Mapping
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Another formula for calculating Clebsch Gordan coefficients

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Abstract

This article presents the derivation of a comprehensive formula for the Clebsch-Gordan coefficients in a quantum system. The formula is derived by employing the iterative application of angular momentum ladder operators on each defined angular momentum subspace to reconstruct the states in the total angular momentum base. The novelty aspect of this approach lies in the utilization of the $J{+}$ raising operator to reconstruct subspaces characterized by non-maximal total angular momentum, in contrast to the conventional Gram-Schmidt procedure typically employed in the standard literature.This enables us to derive a new formula that provides an alternative approach for computing these coefficients, complementing the existing ones found in the literature.

ArXiv.org
Openalex Percentile: Top 48%
Geochemistry and Geologic Mapping
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Another formula for calculating Clebsch Gordan coefficients · ArXiv.org (2025) | TGRS Research Map | TGRS