Evaluation of the systematic shifts of a single-{sup 40}Ca{sup +}-ion frequency standard
Journal Article
·
· Physical Review. A
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)
Progress on the evaluation of systematic frequency shifts is described in the development of the optical frequency standard based on single-trapped {sup 40}Ca{sup +} with a ''clock'' transition at 729 nm. The overall systematic uncertainty of the 4s {sup 2} S{sub 1/2}-3d {sup 2} D{sub 5/2} clock resonance has been characterized to be 7.8 x 10{sup -16}. This uncertainty is at a level similar to the Cs fountain primary standard, while the potential stability for the {sup 40}Ca{sup +} clock exceeds that of Cs.
- OSTI ID:
- 22095477
- Journal Information:
- Physical Review. A, Vol. 84, Issue 5; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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