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

doi:10.1088/0256-307X/39/7/073201

NTSC-IR > 量子频标研究室

	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
	Lu, Benquan 1; Lu, Xiaotong 1; Li, Jiguang 2; Chang, Hong1,3
	2022-07-01
发表期刊	CHINESE PHYSICS LETTERS
ISSN	0256-307X
卷号	39 期号:7 页码:6
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.
资助者	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
DOI	10.1088/0256-307X/39/7/073201
关键词[WOS]	ATOMIC STRONTIUM ; LASER ; SPECTROSCOPY ; TRANSITION
语种	英语
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]
资助者	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
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000820865400001
出版者	IOP Publishing Ltd
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/13708
专题	量子频标研究室
通讯作者	Li, Jiguang; Chang, Hong
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100088, 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.