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arXiv 1009.0899nucl-th
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核密度泛函方法的最新进展

Current Developments in Nuclear Density Functional Methods

J. Dobaczewski

摘要:

密度泛函理论(DFT)成为计算凝聚态、原子和分子物理中由外部单体势结合在一起的多电子系统基态和激发态构型的通用方法。目前,密度泛函理论在原子核结构领域也得到了广泛的研究和应用。核密度泛函理论是自洽平均场论的自然推广,是计算中重核基态性质和低激发态的首选工具。在过去的三十多年里,人们在核密度函数方法的实施、调整和应用方面积累了大量的经验。这一研究方向仍在积极探索中。特别是,目前的发展集中在(i)试图提高核密度泛函方法的性能和精度,(ii)从植根于低能色动力学和有效理论的第一原理推导密度泛函,(iii)包括低能相关性和对称性恢复的影响。在这项研究中,我们提出了最近的结果和核密度泛函方法取得的成就的概述。

英文摘要:

Density functional theory (DFT) became a universal approach to compute ground-state and excited configurations of many-electron systems held together by an external one-body potential in condensed-matter, atomic, and molecular physics. At present, the DFT strategy is also intensely studied and applied in the area of nuclear structure. The nuclear DFT, a natural extension of the self-consistent mean-field theory, is a tool of choice for computations of ground-state properties and low-lying excitations of medium-mass and heavy nuclei. Over the past thirty-odd years, a lot of experience was accumulated in implementing, adjusting, and using the density-functional methods in nuclei. This research direction is still extremely actively pursued. In particular, current developments concentrate on (i) attempts to improve the performance and precision delivered by the nuclear density-functional methods, (ii) derivations of density functionals from first principles rooted in the low-energy chromodynamics and effective theories, and (iii) including effects of low-energy correlations and symmetry restoration. In this study, we present an overview of recent results and achievements gained in nuclear density-functional methods.

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