Many-body Propagator Theory with Three-Body Interactions: a Path to Exotic Open Shell Isotopes

Many-body Propagator Theory with Three-Body Interactions: a Path to Exotic Open Shell Isotopes
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具有三体相互作用的多体传播子理论:奇异开壳层同位素的路径

DOI:
10.1088/1742-6596/529/1/012005
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发表时间:
2014
期刊:
Conference Series
影响因子:
--
通讯作者:
Barbieri C
Barbieri C
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--
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--
作者:
Barbieri C

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由于计算和多体物理学形式主义的新进展,对质量高达 A~ 100 或更大的原子核的从头算预测已成为可能。一些最基本的问题包括如何处理多核子相互作用、如何计算简并(开壳)系统以及追求反应理论的从头算方法。自洽格林函数(SCGF)理论是解决这些挑战的自然方法。它的形式主义最近已扩展到三体和多体相互作用,并在戈尔科夫框架内重新表述以达到半神奇的开壳同位素。这些令人兴奋的进展,加上手性核哈密顿量的预测能力,为理解核图表的大部分内容,特别是在 sd 和 pf 壳层内开辟了道路。本演讲回顾了通过 SCGF 方法在从头算核结构和多体理论方面的最新进展。
Ab-initio predictions of nuclei with masses up to A~ 100 or more are becoming possible thanks to novel advances in computations and in the formalism of many-body physics. Some of the most fundamental issues include how to deal with many-nucleon interactions, how to calculate degenerate—open shell—systems, and pursuing ab-initio approaches to reaction theory. Self-consistent Green's function (SCGF) theory is a natural approach to address these challenges. Its formalism has recently been extended to three-and many-body interactions and reformulated within the Gorkov framework to reach semi-magic open shell isotopes. These exciting developments, together with the predictive power of chiral nuclear Hamiltonians, are opening the path to understanding large portions of the nuclear chart, especially within the sd and pf shells. The present talk reviews the most recent advances in ab-initio nuclear structure and many-body theory that have been possible through the SCGF approach.
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