Hybridization of tensor-optimized and high-momentum antisymmetrized molecular dynamics for light nuclei with bare interaction
Hybridization of tensor-optimized and high-momentum antisymmetrized molecular dynamics for light nuclei with bare interaction
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DOI：
10.1093/ptep/ptx192
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发表时间：
2017-11
期刊：
影响因子：
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通讯作者：
M. Lyu;M. Isaka;T. Myo;H. Toki;K. Ikeda;H. Horiuchi;T. Suhara;T. Yamada
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文献类型：
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作者：
M. Lyu;M. Isaka;T. Myo;H. Toki;K. Ikeda;H. Horiuchi;T. Suhara;T. Yamada
多体相关在原子核裸相互作用的从头描述中起着重要的作用。我们提出了一个新的框架，通过张量优化的反对称分子动力学（TOAMD）和高动量反对称分子动力学（HM-AMD）的杂交来描述轻核，我们称之为“HM-TOAMD”。在这个框架中，我们不仅用TOAMD中的相关函数描述了多体相关，而且用AMD波函数中的高动量对描述了多体相关。利用裸核子-核子相互作用AV8′，我们充分再现了HM-TOAMD中3H核的能量和半径。在这个新框架中很好地描述了裸相互作用中张量力和短程斥力的影响。讨论了该方法在计算上的收敛性和模型空间的灵活性。
Many-body correlations play an essential role in the ab initio description of nuclei with nuclear bare interactions. We propose a new framework to describe light nuclei by the hybridization of the tensor-optimized antisymmetrized molecular dynamics (TOAMD) and the high-momentum AMD (HM-AMD), which we call "HM-TOAMD". In this framework, we describe the many-body correlations in terms of not only the correlation functions in TOAMD, but also the high-momentum pairs in the AMD wave function. With the bare nucleon-nucleon interaction AV8', we sufficiently reproduce the energy and radius of the 3H nucleus in HM-TOAMD. The effects of tensor force and short-range repulsion in the bare interaction are nicely described in this new framework. We also discuss the convergence in calculation and flexibility of the model space for this new method.