标题： 核子对近似与矩阵表示 显示英文标题

标题： Nucleon-pair approximation with matrix representation

摘要： 在本文中，我们提出了一种核子对近似（NPA）方法，其中集体核子对用反对称矩阵表示，并通过矩阵乘法给出核子对之间的对易关系，从而避免了角动量耦合和再耦合。因此，目前的方法显著简化了NPA计算。此外，它在同一体系下适用于有和没有同位旋的情况。 显示英文摘要

摘要： In this paper, we propose an approach of the nucleon-pair approximation (NPA), 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.