An accurate optical lattice clock with 87Sr atoms
Atomic Physics
2016-08-16 v1
Abstract
We report a frequency measurement of the 1S0-3P0 transition of 87Sr atoms in an optical lattice clock. The frequency is determined to be 429 228 004 229 879 (5) Hz with a fractional uncertainty that is comparable to state-of-the-art optical clocks with neutral atoms in free fall. Two previous measurements of this transition were found to disagree by about 2x10^{-13}, i.e. almost four times the combined error bar, instilling doubt on the potential of optical lattice clocks to perform at a high accuracy level. In perfect agreement with one of these two values, our measurement essentially dissipates this doubt.
Cite
@article{arxiv.physics/0605200,
title = {An accurate optical lattice clock with 87Sr atoms},
author = {Rodolphe Le Targat and Xavier Baillard and Mathilde Fouché and Anders Brusch and Olivier Tcherbakoff and Giovanni D. Rovera and Pierre Lemonde},
journal= {arXiv preprint arXiv:physics/0605200},
year = {2016}
}