Frequency ratio of an $^{115}$In$^+$ ion clock and a $^{87}$Sr optical lattice clock
Atomic Physics
2020-11-02 v2
Abstract
We report on the first frequency ratio measurement of an In+ single ion clock and a Sr optical lattice clock. A hydrogen maser serves as a reference oscillator to measure the ratio by independent optical combs. Over more than 90 000 seconds of measurement time, the frequency ratio is determined to be 2.952 748 749 874 863 4(21) with relative uncertainty of . The measurement creates a new connection in the network of frequency ratios of optical clocks.
Cite
@article{arxiv.2008.06259,
title = {Frequency ratio of an $^{115}$In$^+$ ion clock and a $^{87}$Sr optical lattice clock},
author = {Nozomi Ohtsubo and Ying Li and Nils Nemitz and Hidekazu Hachisu and Kensuke Matsubara and Tetsuya Ido and Kazuhiro Hayasaka},
journal= {arXiv preprint arXiv:2008.06259},
year = {2020}
}