2018/07/31 by Mengjiao Lyu, Takayuki Myo, Masahiro Isaka +6 · 16 citations
Chemistry · Mathematics · Physics and Astronomy · #Advanced NMR Techniques and Applications #Computer science #Geometry #Mathematical physics #Mathematics #Molecular dynamics #Momentum (technical analysis) #Nuclear physics #Nuclear physics research studies #Nucleon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #RADIUS #Spin (aerodynamics) #Statistical physics #Tensor (intrinsic definition) #Thermodynamics #nucl-th
paper · pdf · doi:10.1103/physrevc.98.064002
published in Physical Review C 98(6) (American Institute of Physics) · 8 figures
openalex created_date 2018/08/03 · arxiv created 2018/10/14 · openalex publication_date 2018/12/26 · arxiv updated 2019/01/02 · openalex updated_date 2026/08/06
We formulate the ``tensor-optimized high-momentum antisymmetrized molecular dynamics'' (TO-HMAMD) framework for ab initio calculations of nuclei by hybridizing the tensor-optimized (TO) and high-momentum (HM) AMD approaches. This hybrid approach has advantages in both analytical simplicity and numerical efficiency compared with other AMD-based methods which treat the bare interaction, especially for heavier nuclear systems. In this work, the s-shell nucleus 4He is calculated with TO-HMAMD by including up to double product of nucleon-nucleon (NN) correlations, described by using high-momentum pairs and spatial correlation functions of nucleons. The total energy and radius of the 4He nucleus are well reproduced using the AV8^\ensuremath' interaction. The spin-isospin channel dependence is also discussed for NN correlations, which are found to be mostly contributed in the even-state channels, especially the triplet-even channel. Analyses of the analytical formation and numerical results suggest that TO-HMAMD could be a promising framework for p-shell nuclear systems.