角动量耦合Goldstone图的简化和更有效的计算

IF 2.8 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2025-07-15 DOI:10.1140/epja/s10050-025-01637-y

S. L. Jin, J. H. Hou, F. R. Xu

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引用次数: 0

摘要

受Kuo等人（Ann Phys 132:237-276, 1981）工作的启发，我们开发了一种简单的方法来计算角动量耦合方案中的Goldstone图。通过重新定义交叉耦合矩阵元素，我们更有效地利用了对称特性，从而简化了图分解规则，提高了计算效率。我们已经成功地将这些规则应用于单体张量算子，并在Kuo等人（1981）的工作之外，将类似的公式扩展到两体张量算子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Simplified and more efficient computations of angular-momentum-coupled Goldstone diagrams

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Simplified and more efficient computations of angular-momentum-coupled Goldstone diagrams

Motivated by the work of Kuo et al. (Ann Phys 132:237–276, 1981), we develop a simple method to compute Goldstone diagrams in the angular momentum coupled scheme. By redefining the cross-coupled matrix elements, we leverage symmetry properties more effectively, leading to simplified diagram factorization rules and promoted computational efficiency. We have successfully applied the rules to one-body tensor operators, and extended similar formulations to two-body tensor operators beyond the work of Kuo et al. (1981).

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来源期刊

The European Physical Journal A 物理-物理：核物理

CiteScore

5.00

自引率

18.50%

发文量

216

审稿时长

3-8 weeks

期刊介绍： Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.