Towards a Mg Lattice Clock: Observation of the 1S0-3P0 Transition and Determination of the Magic Wavelength

被引：55

作者：

Kulosa, A. P. ^{[1
]}

Fim, D. ^{[1
]}

Zipfel, K. H. ^{[1
]}

Ruehmann, S. ^{[1
]}

Sauer, S. ^{[1
]}

Jha, N. ^{[1
]}

Gibble, K. ^{[1
,2
]}

Ertmer, W. ^{[1
]}

Rasel, E. M. ^{[1
]}

Safronova, M. S. ^{[3
,4
,5
]}

Safronova, U. I. ^{[6
]}

Porsev, S. G. ^{[3
,7
]}

机构：

[1] Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany

[2] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[3] Univ Delaware, Dept Phys & Astron, Newark, DC 19716 USA

[4] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA

[5] Univ Maryland, Gaithersburg, MD 20899 USA

[6] Univ Nevada, Dept Phys, Reno, NV 89557 USA

[7] Petersburg Nucl Phys Inst, Gatchina 188300, Russia

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 24期

基金：

美国国家科学基金会;

关键词：

ATOMIC CLOCK;

D O I：

10.1103/PhysRevLett.115.240801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We optically excite the electronic state 3s3p P-3(0) in Mg-24 atoms, laser cooled and trapped in a magic-wavelength lattice. An applied magnetic field enhances the coupling of the light to the otherwise strictly forbidden transition. We determine the magic wavelength, the quadratic magnetic Zeeman shift, and the transition frequency to be 468.46(21) nm, -206.6(2.0) MHz/T-2, and 655 058 646 691(101) kHz, respectively. These are compared with theoretical predictions and results from complementary experiments. We also develop a high-precision relativistic structure model for magnesium, give an improved theoretical value for the blackbody radiation shift, and discuss a clock based on bosonic magnesium.

引用

页数：5

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