clockOptical clocks with 1 × 10-18 uncertainty are needed by a wide range of sectors from basic science and metrology to applications in geodesy, satellite navigation and environmental monitoring.  This three year collaborative project aims to develop world-leading optical atomic clocks across Europe by addressing the following technical objectives:

  • To achieve instabilities in laser frequencies of
    1 × 10-16 or below after 1s
  • To develop traps for single ions and neutral atoms that support > 1 s probe times
  • To evaluate and reduce systematic uncertainties in optical clocks to the level of 10-18
  • To implement novel interrogation methods with an optimised sequence of probe pulses
  • To validate the performance of optical clocks through direct frequency comparisons

See our August 2018 Publishable Summary of the project.
For more information, please contact the project coordinator, Dr Rachel Godun at NPL.

Tutorial lectures and photos now available from the School on Optical Clocks, September 2018.