协变密度泛函理论中的张量力效应  

Effects of Tensor Force in Covariant Density Functional Theory

作　　者：梁豪兆 申时行 王之恒 LIANG Haozhao;SHEN Shihang;WANG Zhiheng(RIKEN Nishina Center,Wako 351-0198,Japan;Department of Physics,Graduate School of Science,University of Tokyo,Tokyo 113-0033,Japan;School of Physics,Peking University,Beijing 100871,China;Dipartimento di Fisica,Universita degli Studi,Milano 1-20133,Italy;School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]理化学研究所仁科加速器科学研究中心 [2]东京大学理学研究生院物理系 [3]北京大学物理学院,北京100871 [4]米兰大学物理系,意大利米兰i20133 [5]兰州大学核科学与技术学院,兰州730000

出　　处：《原子核物理评论》2018年第4期390-400,共11页Nuclear Physics Review

基　　金：日本学术振兴会资助项目(18K13549);国家自然科学基金委员会与日本学术振兴会合作项目(11711540016)~~

摘　　要：张量力是核子-核子相互作用的重要成分,被认为是理解奇特原子核中壳结构演化规律的关键要素。然而,目前对于核介质中的张量力及其效应的定量认识,仍存在很多亟待解决的关键问题。着重梳理了在原子核密度泛函理论框架下,研究有效相互作用中的张量力成分以及相应的张量力效应的相关工作,重点包括:基于相对论Hartree-Fock理论,以同位素链中的质子幻数壳演化为例,定量提取与分析其中的张量力效应;以及基于第一性原理的相对论Brueckner-Hartree-Fock理论,以中子滴单粒子能谱中的自旋-轨道劈裂演化为例,提出与张量力效应相关联的"准实验数据"。最后,展望原子核密度泛函理论今后可能的发展策略。Tensor force is one of the most important components of the nucleon-nucleon interaction. It plays a critical role in understanding the shell evolution in exotic nuclei. However, there are still several puzzles concerning the tensor force and its effects in the nuclear medium. In this paper, we mainly focus on the studies of tensor force in the effective interactions and its effects in finite nuclear systems within the scheme of nuclear density functional theory. In particular, we highlight the recent developments, including the quantitative analysis of tensor effects in the relativistic Hartree-Fock theory by taking the evolution of proton magic shells in the isotopic chains as an example, and the "meta-data" of tensor effects provided by the ab initio relativistic Brueckner-Hartree-Fock theory by taking the evolution of spin-orbit splitting in the single-particle spectra of neutron drops as an example.Perspectives are focused on the possible strategies for the future developments of nuclear density functional theory.

关 键 词：张量力效应 壳结构演化 自旋-轨道劈裂 协变密度泛函理论 相对论第一性原理计算 

分 类 号：O571.53[理学—粒子物理与原子核物理]