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arXiv 1503.05894nucl-th
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核密度泛函理论中的不确定性量化及其传播

Uncertainty Quantification and Propagation in Nuclear Density Functional Theory

N. Schunck, J. D. McDonnell, D. Higdon, J. Sarich, S. M. Wild

摘要:

核密度泛函理论是研究重、超重元素性质或描述远离稳定核结构的主要理论工具之一。虽然正在进行的努力寻求更好地将核DFT扎根于核力理论中[参见Duguet等人,这个问题],能量泛函仍然是半唯象的结构,它依赖于一组调整到有限核中实验数据的参数。在本文中,我们回顾了最近的努力,量化相关的不确定性,并将其传播到模型预测。特别是,我们涵盖了逆问题的参数估计,模型不确定性的统计分析和贝叶斯推断方法的主题。说明性的例子取自文献。

英文摘要:

Nuclear density functional theory (DFT) is one of the main theoretical tools used to study the properties of heavy and superheavy elements, or to describe the structure of nuclei far from stability. While on-going efforts seek to better root nuclear DFT in the theory of nuclear forces [see Duguet et al., this issue], energy functionals remain semi-phenomenological constructions that depend on a set of parameters adjusted to experimental data in finite nuclei. In this paper, we review recent efforts to quantify the related uncertainties, and propagate them to model predictions. In particular, we cover the topics of parameter estimation for inverse problems, statistical analysis of model uncertainties and Bayesian inference methods. Illustrative examples are taken from the literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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