Continuum Time-Dependent Hartree-Fock Method for Giant Resonances in Spherical Nuclei.
Continuum Time-Dependent Hartree-Fock Method for Giant Resonances in Spherical Nuclei.
复制标题
球形核中巨共振的连续时间相关 Hartree-Fock 方法。
DOI：
10.1103/physrevc.87.014330
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发表时间：
2012
影响因子：
3.1
通讯作者：
P. Stevenson
中科院分区：
文献类型：
--
作者：
C. Pardi;P. Stevenson
本文研究了球对称含时Hartree-Fock近似在核巨共振小振幅区的应用。该问题是空间无界的共振状态是在连续。在有限大小的空间区域中执行计算的实际要求产生物理上不存在的人工边界。如何确保边界不干扰内部解决方案，同时保持整体计算时间低的问题进行了研究。在这里，我们提出了一个吸收边界条件方案来处理冲突。推导，通过一个拉普拉斯变换的方法，并实现描述。该方案的精度和效率进行了测试和结果支持的情况下，他们是一种有效的方式处理人工边界。
This thesis deals with the solution of the spherically symmetric time-dependent Hartree-Fock approximation applied to nuclear giant monopole resonances in the small amplitude regime. The problem is spatially unbounded as the resonance state is in the continuum. The practical requirement to perform the calculation in a finitesized spatial region yields an artificial boundary which is not present physically. The question of how to ensure the boundary does not interfere with the internal solution, while keeping the overall calculation time low is studied. Here we propose an absorbing boundary condition scheme to handle the conflict. The derivation, via a Laplace transform method, and implementation is described. The accuracy and efficiency of the scheme is tested and results presented to support the case that they are a effective way of handling the artificial boundary.
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DOI：
10.1088/0954-3899/37/6/064030
发表时间：
2010
期刊：
Nuclear and Particle Physics
影响因子：
--
作者：
Stevenson P
通讯作者：
Stevenson P
影响因子：
3.1
作者：
S. Fracasso;E. Suckling;P. Stevenson
通讯作者：
S. Fracasso;E. Suckling;P. Stevenson
影响因子：
3.1
作者：
Dutra, M.;Lourenco, O.;Stevenson, P. D.
通讯作者：
Stevenson, P. D.