玻色子和费米子氖同位素及其混合物的磁光俘获：Ne-21的^3P_2到^3D_3跃迁的同位素位移和^3D_3态的超精细常数
Magneto-optical trapping of bosonic and fermionic neon isotopes and their mixtures: isotope shift of the ^3P_2 to ^3D_3 transition and hyperfine constants of the ^3D_3 state of Ne-21
摘要：
我们已经用磁光捕获了所有三种稳定的氖同位素，包括稀有的Ne-21，以及所有两种同位素的组合。原子在亚稳态^3 P_2态下制备，并通过640.2 nm处的^3 P_2到^3 D_3}跃迁的激光相互作用进行操纵。这些冷（T = 1 mK）和环境解耦的原子样品提供了理想的对象，精密测量和冷和超冷亚稳原子之间的相互作用的调查。在这项工作中，我们精确测量了Ne-21的^3P_2到^3D_3跃迁的同位素位移和^3D_3态的超精细相互作用常数。测定的同位素位移为：Ne-20至Ne-22的（1625.9 \pm 0.15）MHz，Ne-20至Ne-21的（855.7 \pm 1.0）MHz，Ne-21至Ne-22的（770.3 \pm 1.0）MHz。得到的磁偶极和电四极超精细相互作用常数分别为A（^3D_3）=（-142.4 \pm 0.2）MHz和B（^3D_3）=（-107.7 \pm 1.1）MHz.与之前的测量相比，所有测量的不确定度都降低了约一个数量级。
英文摘要：
We have magneto-optically trapped all three stable neon isotopes, including the rare Ne-21, and all two-isotope combinations. The atoms are prepared in the metastable ^3P_2 state and manipulated via laser interaction on the ^3P_2 to ^3D_3} transition at 640.2nm. These cold (T = 1mK) and environmentally decoupled atom samples present ideal objects for precision measurements and the investigation of interactions between cold and ultracold metastable atoms. In this work, we present accurate measurements of the isotope shift of the ^3P_2 to ^3D_3 transition and the hyperfine interaction constants of the ^3D_3 state of Ne-21. The determined isotope shifts are (1625.9\pm0.15)MHz for Ne-20 to Ne-22, (855.7\pm1.0)MHz for Ne-20 to Ne-21, and (770.3\pm1.0)MHz for Ne-21 to Ne-22. The obtained magnetic dipole and electric quadrupole hyperfine interaction constants are A(^3D_3)= (-142.4\pm0.2)MHz and B(^3D_3)=(-107.7\pm1.1)MHz, respectively. All measurements give a reduction of uncertainty by about one order of magnitude over previous measurements.
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