论文标题
新的多体方法使用簇膨胀图，具有张量优化的反对称分子动力学
New many-body method using cluster expansion diagrams with tensor-optimized antisymmetrized molecular dynamics
论文作者
论文摘要
我们根据相关函数提出了一种新的多体方法，其中相关函数的多个产物使用群集扩展方法扩展到多体图中，并且每个图在总能量变化中都独立优化。我们使用裸露的核子核子相互作用将此思想应用于张量优化的反对称分子动力学（TOAMD），并在张量和中央型相关函数的三产物中显示了$ s $壳核的结果。我们评估了多体图对解决方案的独立优化的影响。发现三重产物在当前方案中提供了相当大的作用，从而导致核的总能量和汉密尔顿成分相对于少数体计算的良好繁殖。
We propose a new many-body method based on the correlation functions, in which the multiple products of the correlation functions are expanded into the many-body diagrams using the cluster expansion method and every diagram is independently optimized in the total-energy variation. We apply this idea to the tensor-optimized antisymmetrized molecular dynamics (TOAMD) using the bare nucleon-nucleon interaction and show the results of the $s$-shell nuclei within the triple products of the correlation functions of tensor and central-types. We evaluate the effect of the independent optimization of the many-body diagrams on the solutions. It is found that the triple products provides the sizable effect in the present scheme, which results in the good reproduction of the total energy and the Hamiltonian components of nuclei with respect to the few-body calculations.
