Observation of electric-dipole-forbidden infrared transitions in cold molecular ions

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 原子分子光物理研究部

	Observation of electric-dipole-forbidden infrared transitions in cold molecular ions
	Germann, Matthias 1; Tong, Xin 1,2; Willitsch, Stefan 1
刊名	NATURE PHYSICS
	2014-11-01
卷号	10 期号:11 页码:820-824
英文摘要	Spectroscopic transitions in atoms and molecules that are not allowed within the electric-dipole approximation, but occur because of higher-order terms in the interaction between matter and radiation, are termed dipole-forbidden(1). These transitions are extremely weak and therefore exhibit very small natural linewidths. Dipole-forbidden optical transitions in atoms form the basis of next-generation atomic clocks(2,3) and of high-fidelity qubits used in quantum information processors and quantum simulators(4). In molecules, however, such transitions are much less characterized, reflecting the considerable challenges to address them. Here, we report direct observation of dipole-forbidden, electric-quadrupole-allowed infrared (IR) transitions in a molecular ion. Their detection was enabled by the very long interrogation times of several minutes afforded by the sympathetic cooling of individual quantum-state-selected molecular ions into the nearly perturbation-free environment of a Coulomb crystal. The present work paves the way for new mid-IR frequency standards and precision spectroscopic measurements on single molecules in the IR domain(5).
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	N-14(2)+ ; LASER ; HYPERFINE ; N-2(+) ; MOMENT ; CLOCK ; BAND
收录类别	SCI
语种	英语
WOS记录号	WOS:000344846700013
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1485]
专题	武汉物理与数学研究所_原子分子光物理研究部
作者单位	1.Univ Basel, Dept Chem, CH-4056 Basel, Switzerland 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Germann, Matthias,Tong, Xin,Willitsch, Stefan. Observation of electric-dipole-forbidden infrared transitions in cold molecular ions[J]. NATURE PHYSICS,2014,10(11):820-824.
APA	Germann, Matthias,Tong, Xin,&Willitsch, Stefan.(2014).Observation of electric-dipole-forbidden infrared transitions in cold molecular ions.NATURE PHYSICS,10(11),820-824.
MLA	Germann, Matthias,et al."Observation of electric-dipole-forbidden infrared transitions in cold molecular ions".NATURE PHYSICS 10.11(2014):820-824.