precisionspectroscopywithasingle40caioninapaultrap
文献类型：期刊论文
| 作者 | Guan Hua; Huang Yao; Liu Peiliang; Bian Wu; Shao Hu; Gao Kelin |
| 刊名 | chinesephysicsb
 |
| 出版日期 | 2015 |
| 卷号 | 24期号:5页码:054213 |
| ISSN号 | 1674-1056 |
| 英文摘要 | Precision measurement of the 4s~2S_(1/2)-3d~2D_(5/2) clock transition based on ~(40)Ca~+ ion at 729 nm is reported. A single 40Ca+ ion is trapped and laser-cooled in a ring Paul trap, and the storage time for the ion is more than one month. The linewidth of a 729 nm laser is reduced to about 1 Hz by locking to a super cavity for longer than one month uninterruptedly. The overall systematic uncertainty of the clock transition is evaluated to be better than 6.5×10~(-16). The absolute frequency of the clock transition is measured at the 10-15 level by using an optical frequency comb referenced to a hydrogen maser which is calibrated to the SI second through the global positioning system (GPS). The frequency value is 411 042 129 776 393.0(1.6) Hz with the correction of the systematic shifts. In order to carry out the comparison of two 40Ca+ optical frequency standards, another similar 40Ca+ optical frequency standard is constructed. Two optical frequency standards exhibit stabilities of 1 × 10~(-14τ-1/2) with 3 days of averaging. Moreover, two additional precision measurements based on the single trapped 40Ca+ ion are carried out. One is the 3d2D5/2 state lifetime measurement, and our result of 1174(10) ms agrees well with the results reported in Phys. Rev. A 62 032503 (2000) and Phys. Rev. A 71 032504 (2005). The other one is magic wavelengths for the 4s~2S_(1/2)-3d~2D_(5/2) clock transition; λ_(|m_j|=1/2)=395.7992(7) nm and λ_(|m_j|=3/2)= 395.7990(7) nm are reported, and it is the first time that two magic wavelengths for the 40Ca+ clock-transition have been reported. |
| 语种 | 英语 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/21082]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 作者单位 | 中国科学院武汉物理与数学研究所 |
| 推荐引用方式 GB/T 7714 | Guan Hua,Huang Yao,Liu Peiliang,et al. precisionspectroscopywithasingle40caioninapaultrap[J]. chinesephysicsb,2015,24(5):054213. |
| APA | Guan Hua,Huang Yao,Liu Peiliang,Bian Wu,Shao Hu,&Gao Kelin.(2015).precisionspectroscopywithasingle40caioninapaultrap.chinesephysicsb,24(5),054213. |
| MLA | Guan Hua,et al."precisionspectroscopywithasingle40caioninapaultrap".chinesephysicsb 24.5(2015):054213. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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