Nucleon-pair approximation with uncoupled representation *
Nucleon-pair approximation with uncoupled representation *
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DOI：
10.1088/1674-1137/abe3ed
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发表时间：
2020-11
影响因子：
3.6
通讯作者：
Y. Lei;Yi Lu;Y. Zhao
中科院分区：
文献类型：
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作者：
Y. Lei;Yi Lu;Y. Zhao
本文提出了一种基于m-格式基的核对近似（NPA）方法，其中集体核对用反对称矩阵表示，并通过矩阵乘法给出了核对之间的交换，避免了角动量耦合和重耦合。因此，本方法大大简化了NPA的计算。此外，它是在有或没有同位旋的相同基础上表述的。
In this paper, we propose an approach of the nucleon-pair approximation (NPA) with m-scheme basis, in which the collective nucleon pairs are represented in terms of antisymmetric matrices, and commutations between nucleon pairs are given by using matrix multiplication that avoids angular-momentum couplings and recouplings. Therefore the present approach significantly simplifies the NPA computation. Furthermore, it is formulated on the same footing with and without isospin.