Abstract
We explore the interplay of matter with quantum gravity with a preferred frame to highlight that the matter sector cannot be protected from the symmetry-breaking effects in the gravitational sector. Focusing on Abelian gauge fields, we show that quantum gravitational radiative corrections induce Lorentz-invariance-violating couplings for the Abelian gauge field. In particular, we discuss how such a mechanism could result in the possibility to translate observational constraints on Lorentz violation in the matter sector into strong constraints on the Lorentz-violating gravitational couplings.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 026007 |
| Tidsskrift | Physical Review D |
| Vol/bind | 102 |
| Udgave nummer | 2 |
| Antal sider | 20 |
| ISSN | 2470-0010 |
| DOI | |
| Status | Udgivet - 15. jul. 2020 |
Finansiering
We thank B. Knorr and S. Lippoldt for insightful discussions. This work is supported by the DFG under Grant No. Ei-1037/1, and A. E. is also partially supported by a visiting fellowship at the Perimeter Institute for Theoretical Physics. This research is also supported by the Danish National Research Foundation under Grant No. DNRF:90. A. P. is supported by the Alexander von Humboldt Foundation and M. S. is supported by a scholarship of the German Academic Scholarship Foundation. A. E. would like to acknowledge the contribution of the COST Action CA18108: QG-MM (Quantum Gravity phenomenology in the Multi-Messenger approach). M. S. gratefully acknowledges the hospitality at CP3-Origins during the final stages of this work.
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