Heading-error-free optical atomic magnetometry in the Earth-field range
Atomic Physics
2023-04-14 v1
Abstract
Alkali-metal atomic magnetometry is widely used due to its high sensitivity and cryogen-free operation. However, when operating in geomagnetic field, it suffers from heading errors originating from nonlinear Zeeman (NLZ) splittings and magnetic resonance asymmetries, which lead to difficulties in mobile-platform measurements. We demonstrate an alignment based Rb magnetometer, which, with only a single magnetic resonance peak and well-separated hyperfine transition frequencies, is insensitive or even immune to NLZ-related heading errors. It is shown that the magnetometer can be implemented for practical measurements in the geomagnetic environments and the photon-shot-noise-limited sensitivity reaches at room temperature.
Keywords
Cite
@article{arxiv.2204.05071,
title = {Heading-error-free optical atomic magnetometry in the Earth-field range},
author = {Rui Zhang and Dimitra Kanta and Arne Wickenbrock and Hong Guo and Dmitry Budker},
journal= {arXiv preprint arXiv:2204.05071},
year = {2023}
}
Comments
8 pages, 5 figures