气候变化领域集成服务门户(CCPortal): Frequency-comb spectroscopy on pure quantum states of a single molecular ion

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DOI	10.1126/science.aba3628
	Frequency-comb spectroscopy on pure quantum states of a single molecular ion
	Chou C.W.; Collopy A.L.; Kurz C.; Lin Y.; Harding M.E.; Plessow P.N.; Fortier T.; Diddams S.; Leibfried D.; Leibrandt D.R.
发表日期	2020
ISSN	0036-8075
起始页码	1458
结束页码	1461
卷号	367 期号:6485
英文摘要	Spectroscopy is a powerful tool for studying molecules and is commonly performed on large thermal molecular ensembles that are perturbed by motional shifts and interactions with the environment and one another, resulting in convoluted spectra and limited resolution. Here, we use quantum-logic techniques to prepare a trapped molecular ion in a single quantum state, drive terahertz rotational transitions with an optical frequency comb, and read out the final state nondestructively, leaving the molecule ready for further manipulation. We can resolve rotational transitions to 11 significant digits and derive the rotational constant of 40CaH+ to be BR = 142 501 777.9(1.7) kilohertz. Our approach is suited for a wide range of molecular ions, including polyatomics and species relevant for tests of fundamental physics, chemistry, and astrophysics. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	ion molecular analysis physics quantum mechanics spectroscopy article logic physics spectroscopy
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133597
推荐引用方式 GB/T 7714	Chou C.W.,Collopy A.L.,Kurz C.,et al. Frequency-comb spectroscopy on pure quantum states of a single molecular ion[J]. Science,2020,367(6485).
APA	Chou C.W..,Collopy A.L..,Kurz C..,Lin Y..,Harding M.E..,...&Leibrandt D.R..(2020).Frequency-comb spectroscopy on pure quantum states of a single molecular ion.,367(6485).
MLA	Chou C.W.,et al."Frequency-comb spectroscopy on pure quantum states of a single molecular ion".367.6485(2020).