Accurate measurement of the 12.6 GHz "clock" transition in trapped /sup 171/Yb/sup +/ ions

@article{Fisk1997AccurateMO,
  title={Accurate measurement of the 12.6 GHz "clock" transition in trapped /sup 171/Yb/sup +/ ions},
  author={P. T. H. Fisk and M. J. Sellars and M. A. Lawn and Gerald Coles},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
  year={1997},
  volume={44},
  pages={344-354}
}
We have measured the frequency of the /sup 171/Yb/sup +/ 12.6 GHz M/sub F/=0/spl rarr/0 ground state hyperfine "clock" transition in buffer gas-cooled ion clouds confined in two similar, but not identical, linear Paul traps. After correction for the known differences between the two ion traps, including significantly different second-order Doppler shifts, the frequencies agree within an uncertainty of less than 2 parts in 10/sup 13/. Our best value, based on an analytic model for the second… CONTINUE READING
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