Experimentally testing asymptotically safe quantum gravity with photon-photon scattering
Astrid Eichhorn
TL;DR
This paper proposes using photon-photon scattering experiments to directly test the small-scale structure of spacetime predicted by asymptotically safe quantum gravity, especially in models with large extra dimensions.
Contribution
It introduces a novel experimental approach to test asymptotic safety in quantum gravity through photon-photon scattering, considering large extra dimensions.
Findings
Photon-photon scattering can probe quantum gravity effects.
Near-future experiments could test asymptotic safety.
Large extra dimensions enhance testability.
Abstract
Matter-quantum gravity interactions can be used for direct and also indirect experimental tests of quantum gravity. We focus on photon-photon scattering in asymptotically safe gravity as a direct test of the small-scale structure of spacetime, and discuss how near-future experiments can probe asymptotic safety in a setting with large extra dimensions.
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