Clock with 8 × 10 − 19 Systematic Uncertainty
Joint Institute for Laboratory Astrophysics · University of Colorado System · +1 more institution
Abstract
We report an optical lattice clock with a total systematic uncertainty of 8.1×10^{-19} in fractional frequency units, representing the lowest uncertainty of any clock to date. The clock relies on interrogating the ultranarrow ^{1}S_{0}→^{3}P_{0} transition in a dilute ensemble of fermionic strontium atoms trapped in a vertically-oriented, shallow, one-dimensional optical lattice. Using imaging spectroscopy, we previously demonstrated record high atomic coherence time and measurement precision enabled by precise control of collisional shifts and the lattice light shift. In this work, we revise the black body radiation shift correction by evaluating the 5s4d ^{3}D_{1} lifetime, necessitating precise…
Citation impact
- FWCI
- 54.32
- Percentile
- 100%
- References
- 40
Authors
5- AAAlexander AeppliCorresponding
Joint Institute for Laboratory Astrophysics, University of Colorado System
- KKKyungtae Kim
Joint Institute for Laboratory Astrophysics, University of Colorado System
- WWWilliam Warfield
Joint Institute for Laboratory Astrophysics, University of Colorado System
- MSM. S. Safronova
University of Delaware
- JYJun Ye
Joint Institute for Laboratory Astrophysics, University of Colorado System
Topics & keywords
- Computer science