Dytrych T, Launey K D, Draayer J P, Rowe D J, Wood J L, Rosensteel G, Bahri C, Langr D, Baker R B
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic.
Phys Rev Lett. 2020 Jan 31;124(4):042501. doi: 10.1103/PhysRevLett.124.042501.
We show through first-principles nuclear structure calculations that the special nature of the strong nuclear force determines highly regular patterns heretofore unrecognized in nuclei that can be tied to an emergent approximate symmetry. This symmetry is ubiquitous and mathematically tracks with a symplectic symmetry group. This, in turn, has important implications for understanding the physics of nuclei: we find that nuclei are made of only a few equilibrium shapes, deformed or not, with associated vibrations and rotations. It also opens the path for ab initio large-scale modeling of open-shell intermediate-mass nuclei without the need for renormalized interactions and effective charges.
我们通过第一性原理核结构计算表明，强核力的特殊性质决定了原子核中迄今未被认识到的高度规则模式，这些模式可以与一种涌现的近似对称性联系起来。这种对称性无处不在，并且在数学上与一个辛对称群相关。反过来，这对理解原子核物理具有重要意义：我们发现原子核仅由少数几种平衡形状组成，无论是否变形，都伴有相关的振动和转动。它还为无需重整化相互作用和有效电荷的开壳层中等质量原子核的从头算大规模建模开辟了道路。
