Magnetic blackbody shift of hyperfine transitions for atomic clocks
Atomic Physics
2009-12-04 v1
Abstract
We derive an expression for the magnetic blackbody shift of hyperfine transitions such as the cesium primary reference transition which defines the second. The shift is found to be a complicated function of temperature, and has a T^2 dependence only in the high-temperature limit. We also calculate the shift of ground-state p_1/2 hyperfine transitions which have been proposed as new atomic clock transitions. In this case interaction with the p_3/2 fine-structure multiplet may be the dominant effect.
Cite
@article{arxiv.0910.2064,
title = {Magnetic blackbody shift of hyperfine transitions for atomic clocks},
author = {J. C. Berengut and V. V. Flambaum and J. King-Lacroix},
journal= {arXiv preprint arXiv:0910.2064},
year = {2009}
}