Nonadiabatic decay of Rydberg-atom–ion molecules
Nonadiabatic decay of Rydberg-atom–ion molecules
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DOI：
10.1103/physreva.105.012810
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发表时间：
2021-08
影响因子：
2.9
通讯作者：
A. Duspayev;G. Raithel
中科院分区：
文献类型：
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作者：
A. Duspayev;G. Raithel
研究了里德伯原子离子分子（RAIMs）由于电子势能面之间的非绝热耦合引起的衰变。我们采用Born-Huang表示，并使用Crank-Nicolson算法进行数值模拟。计算了Rydberg主量子数n下铷RAIM最低十个振动态ν的非绝热寿命。发现非绝热寿命一般超过辐射里德伯原子寿命。我们观察并解释了寿命随ν和n的变化趋势，并将不规则性归因于内势面中浅势阱产生的量子干涉。我们的研究结果将有助于进一步的光谱研究RAIM。
The decay of Rydberg-atom-ion molecules (RAIMs) due to non-adiabatic couplings between electronic potential energy surfaces is investigated. We employ the Born-Huang representation and perform numerical simulations using a Crank-Nicolson algorithm. The non-adiabatic lifetimes of rubidium RAIMs for the lowest ten vibrational states, ν, are computed for selected Rydberg principal quantum numbers, n. The non-adiabatic lifetimes are found to generally exceed the radiative Rydberg-atom lifetimes. We observe and explain a trend of the lifetimes as a function of ν and n, and attribute irregularities to quantum interference arising from a shallow potential well in an inner potential surface. Our results will be useful for future spectroscopic studies of RAIMs.