We describe recent advances in the accuracies of atomic fountain clocks. New rigorous treatments of the previously large systematic uncertainties, distributed cavity phase, microwave lensing, and background gas collisions, enabled these advances. We also discuss background gas collisions of optical lattice and ion clocks and derive the smooth transition of the microwave lensing frequency shift to photon recoil shifts for large atomic wave packets.
|Original language||English (US)|
|Journal||Journal of Physics: Conference Series|
|State||Published - Jul 4 2016|
|Event||8th Symposium on Frequency Standards and Metrology 2015 - Potsdam, Germany|
Duration: Oct 12 2015 → Oct 16 2015
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)