Sympathetic Ground State Cooling and Time-Dilation Shifts in an ^{27} Al^{+} Optical Clock

Author(s): J.-S. Chen, S. M. Brewer, C. W. Chou, D. J. Wineland, D. R. Leibrandt, and D. B. Hume

A novel method for cooling trapped ions could boost the accuracy of atomic clocks.

[Phys. Rev. Lett. 118, 053002] Published Mon Jan 30, 2017