摘要
冷原子的碰撞特性非常敏感的依赖于精确的原子间相互作用势.基于最近的实验和理论研究,本文用立方样条内插和外推方法构建了目前最为精确的单态和三重态6Li2分子势能曲线.获得的单态和三重态的散射长度的分别为36.5a0和-2138.74a0,这和实验值非常符合.
The elastic scattering properties of cold atoms are very sensitive to the details of the interatomic potentials. Based on recent theoretical and experimental investigations, the research presents improved hybrid potentials for the singlet X1 ∑g^＋ and triplet a^3 ∑g^＋ ground states of the ^6 Li2 by the cubic spline interpolation and extrapolation. The calculated values for the scattering lengths are compared with previous results, and good agreements are obtained. The scattering lengths are 36.5ao for the singlet state and --2138.74a0 for the triplet state.
出处
《河南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第1期57-59,84,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
国家自然科学基金(10574039)
作者简介
张莹（1964-），女，河南郑州人，河南师范大学副教授，主要从事原子分子物理研究．
