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中文摘要：
本文从实验上研究了超冷 nS Rydberg 原子在外电场脉冲作用下的态转移现象. 采用双光子激发超冷基态原子制备超冷Rydberg原子,通过脉冲场电离法探测超冷Rydberg原子的离子信号,实验研究了由外加脉冲电场产生的nS 能级和多重态的避免交叉, 获得了在外电场脉冲作用下 nS 态原子的态转移现象, 实验与理论计算的结果相一致.
英文摘要：
The state transfer of nS Rydberg atoms induced by external pulsed electric field has been investigated. Cold nS Rydberg atoms are prepared by the two-photon transition and the selective field-ionization method is used to detect the Rydberg atoms and ＂P＂ state due to the state mixing. The avoided crossing of nS and （n 4） manifold is studied and the dependence of the state transfer rate on the strength of pulsed field is obtained. Experimental result is interpreted by using Stark effect of electric field and it shows consistency between experiment and calculation.
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