https://doi.org/10.1140/epjp/s13360-025-06409-7
Regular Article
Test of quantum gravity in optical magnetometers
1
Theoretical Physics Group and Quantum Alberta, Department of Physics and Astronomy, University of Lethbridge, 4401 University Drive, T1K 3M4, Lethbridge, AB, Canada
2
Department of Physics, University of Alberta, 4-181 CCIS, T6G 2E1, Edmonton, AB, Canada
3
Department of Electrical and Computer Engineering, University of Alberta, 9211 116 St NW, T6G 1H9, Edmonton, AB, Canada
Received:
22
April
2025
Accepted:
6
May
2025
Published online:
29
May
2025
In this work, quantum gravity effects, which can potentially be measured in magnetometers through the Larmor frequency of atoms in an external magnetic field, are estimated. It is shown that the thermal motion of atoms can, in principle, produce measurable quantum gravity effects, given the precision of modern magnetometers. If the particle velocities are caused by some other mechanism, such as convection, it is shown that the quantum gravity effects may be observed with the magnetometer’s proposed detection threshold. An actual state-of-the-art optical magnetometer experiment is being designed to search for these effects and is described in a companion paper by Maldaner et al. (2023) (Phys. Rev. A 109: 032814, 2024).
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
