Experimental Determination (∼mHz) of the Ground-State Hyperfine Separation of Trapped 199 Hg + in a Hyperbolic Paul Trap
Experimental Determination (∼mHz) of the Ground-State Hyperfine Separation of Trapped 199 Hg + in a Hyperbolic Paul Trap
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DOI：
10.1088/0256-307x/29/12/123201
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发表时间：
2012-12
影响因子：
3.5
通讯作者：
He Yue-hong;S. Lei;Chen Yihe;Yang Yu-na;Liu Hao;Lin Jiao-mei
中科院分区：
文献类型：
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作者：
He Yue-hong;S. Lei;Chen Yihe;Yang Yu-na;Liu Hao;Lin Jiao-mei
本文首次用分时振荡场的方法观察了双曲保罗阱中捕获的Hg-199(+) （δ F = 1, δ m(F) = 0）离子基态超精细跃迁上的Ramsey条纹。在被困Hg-199（+）微波频率标准下，中央Ramsey条纹的半最大值全宽约为25mHz，相应的线路质量因子Q大于10（12）。利用高分辨率拉姆齐条纹测量了磁场作用下的超精细跃迁频率。最终结果为Delta nu(hfs) = 40507347997.3(0.5) Hz，校正后为零磁场。
The Ramsey fringes on the ground-state hyperfine transition of Hg-199(+) (Delta F = 1, Delta m(F) = 0) ions trapped in a hyperbolic Paul trap are firstly observed with the method of time-separated oscillatory fields. The full width at half maximum of central Ramsey fringes is about 25mHz and the corresponding quality factor Q of the line is greater than 10(12) for the trapped Hg-199(+) microwave frequency standard. The hyperfine transition frequency shifted by magnetic field is also measured by the high-resolution Ramsey fringes. The final result is Delta nu(hfs) = 40507347997.3(0.5) Hz, which is corrected to zero magnetic field.