Differential clock comparisons with a multiplexed optical lattice clock.

@article{Zheng2022DifferentialCC,
  title={Differential clock comparisons with a multiplexed optical lattice clock.},
  author={Xin Zheng and Jonathan Dolde and Varun Lochab and Brett Merriman and Haoran Li and Shimon Kolkowitz},
  journal={Nature},
  year={2022},
  volume={602 7897},
  pages={
          425-430
        }
}
Rapid progress in optical atomic clock performance has advanced the frontiers of timekeeping, metrology and quantum science1-3. Despite considerable efforts, the instabilities of most optical clocks remain limited by the local oscillator rather than the atoms themselves4,5. Here we implement a 'multiplexed' one-dimensional optical lattice clock, in which spatially resolved strontium atom ensembles are trapped in the same optical lattice, interrogated simultaneously by a shared clock laser and… 

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