ns6s里德堡分子的势能曲线  

Potential of Long-range ns6s Rydberg Molecule

作　　者：韩小萱[1] 焦月春[1] 赵建明[1] 

机构地区：[1]量子光学与光量子器件国家重点实验室山西大学激光光谱研究所,山西太原030006

出　　处：《量子光学学报》2017年第1期46-51,共6页Journal of Quantum Optics

基　　金：国家自然科学基金项目(批准号:11274209);山西省留学基金(批准号:2014-009)

摘　　要：里德堡电子与基态原子的低能电子散射形成长程里德堡分子,这种分子具有大的轨道半径,丰富的振动能级和永久电偶极矩等特点。本文考虑铯里德堡ns态与(n-4)l(n为主量子数,l为角量子数且l>2)近简并态的非绝热耦合与p-波共振现象,数值计算了长程铯里德堡分子的势能曲线。分析ns6s(n=32-36)态分子最外层势阱,研究了长程里德堡分子的势阱深度、平衡距离与主量子数n的关系,为实验研究长程里德堡分子提供理论依据。The long-range Rydberg molecule arises from the low-energy scattering between the Rydberg electron and the ground-state atom.These molecules have larger sizes,rich vibrational levels and giant permanent electric dipole moments.In this paper,we calculate the potentials of long-range ns6 s Rydberg molecules with accounting for the nonadiabatic coupling between near degeneracy of（n-4）l states（nis the principal quantum number,l is angular quantum number with l2）and ns Rydberg states and p-wave scatting.We investigate the outer potential well and obtain the dependence of the potential depth,De,and equilibrium distance,r_0,on the principal quantum number n,which is helpful for preparing the long-range Rydberg molecule using ultracold atomic gases.

关 键 词：长程里德堡分子 p-波散射 势能曲线 

分 类 号：O431[机械工程—光学工程]