偶极子
电场
原子物理学
物理
电偶极矩
离子
斯塔克效应
连贯性(哲学赌博策略)
跃迁偶极矩
电偶极子跃迁
力矩(物理)
领域(数学)
离子阱
磁偶极子
量子力学
数学
纯数学
作者
Alejandra Collopy,Jochen Schmidt,D. Leibfried,David R. Leibrandt,Chin-Wen Chou
标识
DOI:10.1103/physrevlett.130.223201
摘要
We characterize and model the Stark effect due to the radio-frequency (rf) electric field experienced by a molecular ion in an rf Paul trap, a leading systematic in the uncertainty of the field-free rotational transition. The ion is deliberately displaced to sample different known rf electric fields and measure the resultant shifts in transition frequencies. With this method, we determine the permanent electric dipole moment of ${\mathrm{CaH}}^{+}$, and find close agreement with theory. The characterization is performed by using a frequency comb which probes rotational transitions in the molecular ion. With improved coherence of the comb laser, a fractional statistical uncertainty for a transition line center of as low as $4.6\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}13}$ was achieved.
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