Oscillating quadrupole effects in high-precision metrology

@article{Arnold2019OscillatingQE,
  title={Oscillating quadrupole effects in high-precision metrology},
  author={K. Arnold and R. Kaewuan and T. R. Tan and M. Barrett},
  journal={Physical Review A},
  year={2019},
  volume={99},
  pages={022515}
}
The influence of oscillating quadrupole fields on atomic energy levels is examined theoretically, and general expressions for the quadrupole matrix elements are given. The results are relevant to any ion-based clock in which one of the clock states supports a quadrupole moment. Clock shifts are estimated for $^{176}\mathrm{Lu}^{+}$ and indicate that coupling to the quadrupole field would not be a limitation to clock accuracy at the $\ensuremath{\lesssim}{10}^{\ensuremath{-}19}$ level… Expand
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A Multi-Frequency Approach to the Definition of a Frequency Standard Using 176L+

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