氦原子1Se双激发态的强径-径关联区

本文详细地研究了氦原子¹S^e态N=3序列内的电子-电子关联。探索并确认了K分类的几何内涵。发现了“强径-径关联区”的存在,其中两个电子的径向运动呈强烈的反位相耦合。 关键词：     

Bakamjian-Thomas理论中的相移行为

本文在B-T理论的框架内,探讨了高能相移的行为及其与唯象核力的实部和虚部 V_R—iV_I 的关系.得到 Reδ（Φ）（Φ）.发现陡的排斥心会引起 Reδ_l 的特征振荡;并发现 Imδ_l 对 V_I是敏感的.因而,较高能量的相移分析工作对决定核力的排斥心与虚部是重要的.     

N体散射——(Ⅲ)局部过程与广义的Watson展开

本文给出了高级脉冲近似和广义的Watson展开,从而把N体散射过程分解为局部过程。讨论了出射道和截面公式。并考虑了全同粒子系的情况。     

从高能散射实验资料讨论唯象核力的强度和力程

本文在 Bakamjian-Thomas 理论的框架内,利用小角度散射实验资料讨论了高能唯象核力 V=V_R—iV_I 的定性性质.鉴于高能小角度资料对自旋不敏感,在高能核力与自旋无关的假定下得到:i)对于高斯型的位,V_I 的强度 X₃,约为200MeV,力程β₃约为0.95fm;ii)V_R 中不存在硬排斥心.粗略估计,假定排斥心的力程β₁>0.45fm,则其强度 X₁<480MeV;iii)各核力参数随能量变化缓慢.     

量子力学五体问题的求解

文中提出了解五体薛定谔方程的一种变分方法,求得基态波函数后对其作出分析,并得到其几何结构和内部运动的特征.     

分波分析在探索氦原子结构中的应用

本文从分波分析入手,研究了氦原子诸双激发态内电子间的角关联,进而显示了这些态的几何特征。找出了K—量子数不同的态在分波结构上的差异,从而为K—分类规则提供了可靠的物理依据。     

ONE-BODY DENSITIES AND FEATURES OF THE STRUCTURE OF THE 2S+1Pe DOUBLY EXCITED HELIUM STATES

The qualitative features of electron-electron correlation of the 2S+1Pe doubly excited helium states have been investigated. The anisotropism of the electronic cloud has been shown. A comparison has been made between the S=1 and S=0 states. The structures among the states, which belong to the same rotorlike supermultiplet, have also been compared with each other.     

Effect of electric field on the electronic spectrum and the persistent current of a quantum ring with two electrons

The effect of an electric field E on a narrow quantum ring that contains two electrons and is threaded by a magnetic flux B has been investigated. Localization of the electronic distribution and suppression of the Aharonov--Bohm oscillation (ABO) are found in the two-electron ring, which are similar to those found in a one-electron ring. However, the period of ABO in a two-electron ring is reduced by half compared with that in a one-electron ring. Furthermore, during the variation of B, the persistent current of the ground state may undergo a sudden change in sign. This change is associated with a singlet--triplet transition and has no counterpart in one-electron rings. For a given E, there exists a threshold of energy. When the energy of the excited state exceeds the threshold, the localization would disappear and the ABO would recover. The value of the threshold is proportional to the magnitude of E. Once the threshold is exceeded, the persistent current is much stronger than the current of the ground state at E=0.     

结构关联和核的简谐与非谐振动

本文通过对三对角线、五对角线无穷维矩阵的对角化,定性探讨中重球形偶偶核的简谐和非谐振动。并以Sn¹²⁰为例作了计算     

具有排斥心的短程吸引力作用下的三体系统的内部运动

本文对三体系统的粒子-粒子关联进行了仔细的分析, 发现发若干内部运动的模式.