Linear response theory in the continuum for deformed nuclei: Green's function vs time-dependent Hartree-Fock with the absorbing boundary condition
Linear response theory in the continuum for deformed nuclei: Green's function vs time-dependent Hartree-Fock with the absorbing boundary condition
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DOI：
10.1103/physrevc.71.024301
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发表时间：
2004-09
影响因子：
3.1
通讯作者：
T. Nakatsukasa;K. Yabana
中科院分区：
文献类型：
--
作者：
T. Nakatsukasa;K. Yabana
将连续随机位相近似推广到适用于形变核的随机位相近似。我们提出了两种不同的方法。一种是基于三维格林函数的方法，另一种是基于吸收边界条件的小幅度TDHF方法。这两种方法都是基于三维笛卡尔网格表示，适用于核形状不对称的系统。用BKN相互作用检验了这两种方法的准确性和一致性。利用小振幅TDHF方法中的全Skyrme能量泛函，研究了{sup 16}O和偶-偶Be同位素连续谱中的等向量巨偶极态。
The continuum random-phase approximation is extended to the one applicable to deformed nuclei. We propose two different approaches. One is based on the use of the three-dimensional (3D) Green's function, and the other is the small-amplitude TDHF with the absorbing boundary condition. Both methods are based on the 3D Cartesian grid representation and applicable to systems with no symmetry on nuclear shape. The accuracy and identity of these two methods are examined with the BKN interaction. Using the full Skyrme energy functional in the small-amplitude TDHF approach, we study the isovector giant dipole states in the continuum for {sup 16}O and for even-even Be isotopes.