Evaluation of the systematic shifts of a single-${}^{40}$Ca${}^{+}$-ion frequency standard

Evaluation of the systematic shifts of a single- $^{40}$ Ca $^{+}$ -ion frequency standard

Yao Huang, Qu Liu, Jian Cao, Baoquan Ou, Peiliang Liu, Hua Guan, Xueren Huang, and Kelin Gao

Phys. Rev. A 84, 053841 – Published 21 November 2011

Abstract

Progress on the evaluation of systematic frequency shifts is described in the development of the optical frequency standard based on single-trapped $^{40}$ Ca $^{+}$ with a “clock” transition at 729 nm. The overall systematic uncertainty of the 4 $s$ $^{2}$ $S_{1 / 2}$ -3 $d$ $^{2}$ $D_{5 / 2}$ clock resonance has been characterized to be 7.8 × 10 $^{- 16}$ . This uncertainty is at a level similar to the Cs fountain primary standard, while the potential stability for the $^{40}$ Ca $^{+}$ clock exceeds that of Cs.

Received 13 April 2011
Corrected 19 January 2012

DOI:https://doi.org/10.1103/PhysRevA.84.053841

Corrections

19 January 2012

Erratum

Publisher's Note: Evaluation of the systematic shifts of a single- $^{40}$ Ca $^{+}$ -ion frequency standard [Phys. Rev. A 84, 053841 (2011)]

Yao Huang, Qu Liu, Jian Cao, Baoquan Ou, Peiliang Liu, Hua Guan, Xueren Huang, and Kelin Gao

Phys. Rev. A 85, 019912 (2012)

Authors & Affiliations

Yao Huang^1,2,4, Qu Liu^1,2,4, Jian Cao^1,2,4, Baoquan Ou^1,2,*, Peiliang Liu^1,2,4, Hua Guan^1,2,3, Xueren Huang^1,2,3, and Kelin Gao^1,2,3,†

¹State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
²Key Laboratory of Atomic Frequency Standards, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
³Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China
⁴Graduate School, Chinese Academy of Sciences, Beijing 100080, China

^*Permanent address: Department of Physics, National University of Defense Technology, Changsha, 410073, China.
^†klgao@wipm.ac.cn

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Vol. 84, Iss. 5 — November 2011

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