A transportable 40Ca+ single-ion clock with $7.7\times 10^{-17}$ systematic uncertainty
Atomic Physics
2022-03-25 v1
Abstract
A transportable optical clock refer to the electric quadrupole transition at 729 nm of single trapped in mini Paul trap has been developed. The physical system of optical clock is re-engineered from a bulky and complex setup to an integration of two subsystems: a compact single ion unit including ion trapping and detection modules, and a compact laser unit including laser sources, beam distributor and frequency reference modules. Apart from the electronics, the whole equipment has been constructed within a volume of 0.54 . The systematic fractional uncertainty has been evaluated to be , and the Allan deviation fits to be by clock self-comparison with a probe pulse time 20 ms.
Keywords
Cite
@article{arxiv.1607.03731,
title = {A transportable 40Ca+ single-ion clock with $7.7\times 10^{-17}$ systematic uncertainty},
author = {Jian Cao and Ping Zhang and Junjuan Shang and Kaifeng Cui and Jinbo Yuan and Sijia Chao and Shaomao Wang and Hualin Shu and Xueren Huang},
journal= {arXiv preprint arXiv:1607.03731},
year = {2022}
}