Reconciliation of Theoretical Lifetimes of the 5s5p P-3(2)o Metastable State for Sr-88 with Measurement: The Role of the Blackbody-Radiation-Induced Decay
文献类型：期刊论文
| 作者 | Lu, Benquan3; Lu, Xiaotong3; Li, Jiguang2; Chang, Hong1,3
|
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 39期号:7页码:6 |
| ISSN号 | 0256-307X |
| DOI | 10.1088/0256-307X/39/7/073201 |
| 英文摘要 | We conducted measurement and calculation to resolve the long-standing large discrepancy in the metastable state lifetime for the Sr-88 atom between theoretical and experimental results. The present lifetime tau = 830(-240)(+600) s, measured using the magneto-optical trap as a photon amplifier to detect the weak decay events, is approximately 60% larger than the previous experimental value tau = 520(-140)(+310) s. By considering the electron correlation effects in the framework of the multiconfiguration Dirac-Hartree-Fock theory, we obtained a theoretical lifetime of 1079(54) s, which lies in the range of measurements with error bars. Furthermore, we considered the higher-order electron correlation and Breit interaction to control the uncertainty of the theoretical calculation. The significant improvement in the agreement between calculations and measurements is attributed to the updated blackbody radiation-induced decay rate. |
| WOS关键词 | ATOMIC STRONTIUM ; LASER ; SPECTROSCOPY ; TRANSITION |
| 资助项目 | National Natural Science Foundation of China[11874090] ; National Natural Science Foundation of China[91536106] ; National Natural Science Foundation of China[61127901] ; National Natural Science Foundation of China[11404025] ; National Natural Science Foundation of China[U1530142] ; Strategic Priority Research Program of CAS[XDB21030100] ; Key Research Project of Frontier Science of CAS[QYZDB-SSW-JSC004] ; West Light Foundation of CAS[XAB2018B17] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000820865400001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Key Research Project of Frontier Science of CAS ; Key Research Project of Frontier Science of CAS ; West Light Foundation of CAS ; West Light Foundation of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Key Research Project of Frontier Science of CAS ; Key Research Project of Frontier Science of CAS ; West Light Foundation of CAS ; West Light Foundation of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Key Research Project of Frontier Science of CAS ; Key Research Project of Frontier Science of CAS ; West Light Foundation of CAS ; West Light Foundation of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of CAS ; Strategic Priority Research Program of CAS ; Key Research Project of Frontier Science of CAS ; Key Research Project of Frontier Science of CAS ; West Light Foundation of CAS ; West Light Foundation of CAS |
| 源URL | [http://210.72.145.45/handle/361003/13708]  |
| 专题 | 国家授时中心_量子频标研究室 |
| 通讯作者 | Li, Jiguang; Chang, Hong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100088, Peoples R China 2.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Benquan,Lu, Xiaotong,Li, Jiguang,et al. Reconciliation of Theoretical Lifetimes of the 5s5p P-3(2)o Metastable State for Sr-88 with Measurement: The Role of the Blackbody-Radiation-Induced Decay[J]. CHINESE PHYSICS LETTERS,2022,39(7):6. |
| APA | Lu, Benquan,Lu, Xiaotong,Li, Jiguang,&Chang, Hong.(2022).Reconciliation of Theoretical Lifetimes of the 5s5p P-3(2)o Metastable State for Sr-88 with Measurement: The Role of the Blackbody-Radiation-Induced Decay.CHINESE PHYSICS LETTERS,39(7),6. |
| MLA | Lu, Benquan,et al."Reconciliation of Theoretical Lifetimes of the 5s5p P-3(2)o Metastable State for Sr-88 with Measurement: The Role of the Blackbody-Radiation-Induced Decay".CHINESE PHYSICS LETTERS 39.7(2022):6. |
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来源：国家授时中心
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