量子光学学报, 2017, 23 (1): 46, 网络出版: 2017-05-09   

ns6s里德堡分子的势能曲线

Potential of Long-range ns6s Rydberg Molecule
作者单位
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
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。
Abstract
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 ns6s Rydberg molecules with accounting for the nonadiabatic coupling between near degeneracy of (n-4) l states (n is the principal quantum number,l is angular quantum number with l>2) 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,r0,on the principal quantum number n,which is helpful for preparing the long-range Rydberg molecule using ultracold atomic gases.
参考文献

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韩小萱, 焦月春, 赵建明. ns6s里德堡分子的势能曲线[J]. 量子光学学报, 2017, 23(1): 46. HAN Xiao-xuan, JIAO Yue-chun, ZHAO Jian-ming. Potential of Long-range ns6s Rydberg Molecule[J]. Acta Sinica Quantum Optica, 2017, 23(1): 46.

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