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arXiv 1209.0971nucl-th
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球核巨共振的连续含时Hartree-Fock

Continuum time-dependent Hartree-Fock for giant resonances in spherical nuclei

C. I. Pardi, P. D. Stevenson

摘要:

本文讨论球对称含时Hartree-Fock近似在核巨共振情况下的解。由于共振态是连续的,所以该问题是空间无界的。在有限大小的空间区域中执行计算的实际要求导致空间边界条件的困难。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,通过拉普拉斯变换的方法,和实施进行了说明。该方案的精度和效率进行了测试,结果表明,他们是一种有效的方式处理人工边界的情况下。

英文摘要:

This paper deals with the solution of the spherically symmetric time-dependent Hartree-Fock approximation applied in the case of nuclear giant monopole resonances. The problem is spatially unbounded as the resonance state is in the continuum. The practical requirement to perform the calculation in a finite-sized spatial region results in a difficulty with the spatial boundary conditions. Here we propose a 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 the results presented to support the case that they are a effective way of handling the artificial boundary.

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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