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arXiv 0712.1364nucl-thastro-phcond-mat.other
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核物理与核天体物理的辅助场扩散蒙特卡罗方法

The Auxiliary Field Diffusion Monte Carlo Method for Nuclear Physics and Nuclear Astrophysics

Stefano Gandolfi

摘要:

在这篇论文中,我讨论了使用辅助场扩散蒙特卡罗方法来计算核哈密顿量的基态,并展示了它在核物理和核天体物理中的一些有趣问题中的应用。特别是,AFDMC算法适用于研究几个核系统,有限和无限的问题。讨论了原子核($^4$ He、$^8$ He、$^{16}$ O和$^{40}$ Ca)、中子滴(8和20个中子)和丰中子核(氧和钙的同位素)基态的计算结果,计算了核和中子物质的物态方程,并与其它多体计算进行了比较。研究了低密度区中子物质的$^1S_0$超流相。

英文摘要:

In this thesis, I discuss the use of the Auxiliary Field Diffusion Monte Carlo method to compute the ground state of nuclear Hamiltonians, and I show several applications to interesting problems both in nuclear physics and in nuclear astrophysics. In particular, the AFDMC algorithm is applied to the study of several nuclear systems, finite, and infinite matter. Results about the ground state of nuclei ($^4$He, $^8$He, $^{16}$O and $^{40}$Ca), neutron drops (with 8 and 20 neutrons) and neutron rich-nuclei (isotopes of oxygen and calcium) are discussed, and the equation of state of nuclear and neutron matter are calculated and compared with other many-body calculations. The $^1S_0$ superfluid phase of neutron matter in the low-density regime was also studied.

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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