Magic radio-frequency dressing of nuclear spins in high-accuracy optical clocks
Atomic Physics
2012-12-06 v3 Quantum Physics
Abstract
A Zeeman-insensitive optical clock atomic transition is engineered when nuclear spins are dressed by a non resonant radio-frequency field. For fermionic species as Sr, Yb, and Hg, particular ratios between the radiofrequency driving amplitude and frequency lead to "magic" magnetic values where a net cancelation of the Zeeman clock shift and a complete reduction of first order magnetic variations are produced within a relative uncertainty below the level. An Autler-Townes continued fraction describing a semi-classical radio-frequency dressed spin is numerically computed and compared to an analytical quantum description including higher order magnetic field corrections to the dressed energies.
Keywords
Cite
@article{arxiv.1206.7091,
title = {Magic radio-frequency dressing of nuclear spins in high-accuracy optical clocks},
author = {Thomas Zanon-Willette and Emeric de Clercq and Ennio Arimondo},
journal= {arXiv preprint arXiv:1206.7091},
year = {2012}
}
Comments
accepted for publication in Phys. Rev. Lett