Perturbative Quantum Gravity Induced Scalar Coupling to Electromagnetism
arXiv:2301.12611 · doi:10.1016/j.physletb.2023.137966
Abstract
Physicists working on atom interferometers are interested in scalar couplings to electromagnetism of dimensions 5 and 6 which might be induced by quantum gravity. There is a widespread belief that such couplings can only be induced by conjectured non-perturbative effects, resulting in unknown coupling strengths. In this letter we exhibit a completely perturbative mechanism through which quantum gravity induces dimension six couplings with precisely calculable coefficients.
7 pages, no figures, uses LaTeX2e. Version 2 slightly revised for publication