Nucleon-pair approximation with uncoupled representation

作     者：Y.Lei Y.Lu Y.M.Zhao 雷杨;路毅;赵玉民

作者机构：School of National Defense Science and TechnologySouthwest University of Science and TechnologyMianyang 621010China College of Physics and EngineeringQufu Normal UniversityQufu 273165China Shanghai Key Laboratory of Particle Physics and CosmologySchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA(CICIFSA)Shanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2021年第45卷第5期

页      面：129-140页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：the Sichuan Science and Technology Program(2019JDRC0017) Doctoral Program of Southwest University of Science and Technology(18zx7147) National Natural Science Foundation of China(11705100) Youth Innovations and Talents Project of Shandong Provincial Colleges,and Universities(201909118) Higher Educational Youth Innovation Science and Technology Program Shandong Province(2020KJJ004) National Natural Science Foundation of China(11975151,11675101,11961141003) MOE Key Lab for Particle Physics,Astrophysics and Cosmology for financial support 

主　　题：uncoupled representation nucleon-pair approximation formalism computational efficiency 

摘      要：In this paper,we propose an approach to nucleon-pair approximation(NPA)with m-scheme bases,in which the collective nucleon pairs are represented in terms of antisymmetric matrices,and commutations between nucleon pairs are given using a matrix multiplication that avoids angular-momentum couplings and *** the present approach significantly simplifies the NPA ***,it is formulated on the same footing with and without isospin.