标题： 原子氦三聚体的结构：晕态和埃菲莫夫态 显示英文标题

标题： The structure of the atomic helium trimers: Halos and Efimov states

摘要： 原子氦三聚体系统的法捷耶夫方程用高精度数值方法求解，既适用于最复杂的现实势能，也适用于简单的现象学势能。描述了一种高效的数值过程。对于弱结合的三体系统至关重要的大距离渐近行为，几乎可以解析地描述任意势能。特别考虑了埃菲莫夫效应。对束缚态的几何结构进行了定量研究。简化的模型和以前的计算的准确性相当，即对于空间扩展的状态在20%以内，对于较小的^4He三聚体基态在40%以内。 显示英文摘要

摘要： The Faddeev equations for the atomic helium-trimer systems are solved numerically with high accuracy both for the most sophisticated realistic potentials available and for simple phenomenological potentials. An efficient numerical procedure is described. The large-distance asymptotic behavior, crucial for weakly bound three-body systems, is described almost analytically for arbitrary potentials. The Efimov effect is especially considered. The geometric structures of the bound states are quantitatively investigated. The accuracy of the schematic models and previous computations is comparable, i.e. within 20% for the spatially extended states and within 40% for the smaller ^4He-trimer ground state.