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arXiv 0708.3500nucl-th
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核介质的蒙特卡罗模拟:费米气体、原子核和泡利势的作用

Monte Carlo simulation of the nuclear medium: Fermi gases, nuclei and the role of Pauli potentials

M. A. Perez-Garcia

摘要:

研究了泡利势在低温费米气体半经典模拟中的作用。本文提出了一种替代Dorso等提出的二元高斯型的Pauli势。这种新的泡利势不仅可以同时很好地再现每个粒子的动能,而且可以再现动量分布和两体关联函数。本文还分析了中低质量范围内有限核结合能的再现问题。我们发现,在合理的短程引力核相互作用下,我们可以在适当的密度相关泡利势中考虑关联效应。

英文摘要:

The role of Pauli potentials in the semiclassical simulation of Fermi gases at low temperatures is investigated. An alternative Pauli potential to the usual bivariate Gaussian form by Dorso et al. is proposed. This new Pauli potential allows for a simultaneous good reproduction of not only the kinetic energy per particle but also the momentum distribution and the two-body correlation function. The reproduction of the binding energies in finite nuclei in the low and medium mass range is also analyzed. What is found is that given a reasonable short-range atractive nuclear interaction one can include correlation effects in a suitable chosen density dependent Pauli potential.

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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