Quantum Monte Carlo calculations of light nuclei
Quantum Monte Carlo calculations of light nuclei
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DOI：
10.1140/epja1339-12
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
Steven C. Pieper
中科院分区：
文献类型：
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作者：
Steven C. Pieper
针对最多十个核子的核，使用真实的二核子和三核子相互作用进行量子蒙特卡罗计算。我们的格林函数蒙特卡罗计算的结合能精确度为 ∼1-2%。我们使用阿贡 v18NN 相互作用和合理的三核子相互作用构建了哈密顿量，以仅约 500 keV rms 的误差再现这些核态的能量。其他预测，例如形状因素、衰减率和光谱因素也与数据非常吻合。其中一些结果表明轻核的初始计算现在已经顺利进行。
Quantum Monte Carlo calculations using realistic two- and three-nucleon interactions are presented for nuclei with up to ten nucleons. Our Green's function Monte Carlo calculations are accurate to ∼1-2% for the binding energy. We have constructed Hamiltonians using the Argonne v18NNinteraction and reasonable three-nucleon interactions that reproduce the energies of these nuclear states with only ∼500 keV rms error. Other predictions, such as form factors, decay rates, and spectroscopic factors also agree well with data. Some of these results are presented to show thatab initiocalculations of light nuclei are now well in hand.