@article{224991,
  author = {Jwo-Sy Chen and Samuel Brewer and David Hume and Chin-Wen Chou and David Wineland and David Leibrandt},
  title = {Sympathetic Ground State Cooling and Time-dilation Shifts in an 27Al+ Optical Clock},
  year = {2017},
  month = {2017-02-03},
  publisher = {Physics Review Letters},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921576},
  language = {en},
}