The collisional frequency shift of a trapped-ion optical clock
Atomic Physics
2017-09-01 v3
Abstract
Collisions with background gas can perturb the transition frequency of trapped ions in an optical atomic clock. We develop a non-perturbative framework based on a quantum channel description of the scattering process, and use it to derive a master equation which leads to a simple analytic expression for the collisional frequency shift. As a demonstration of our method, we calculate the frequency shift of the Sr optical atomic clock transition due to elastic collisions with helium.
Keywords
Cite
@article{arxiv.1705.10019,
title = {The collisional frequency shift of a trapped-ion optical clock},
author = {Amar C. Vutha and Tom Kirchner and Pierre Dubé},
journal= {arXiv preprint arXiv:1705.10019},
year = {2017}
}