Lorentz invariance violations in the interplay of quantum gravity with matter

Astrid Eichhorn, Alessia Platania, Marc Schiffer

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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.

Original languageEnglish
Article number026007
JournalPhysical Review D
Volume102
Issue number2
Number of pages20
ISSN2470-0010
DOIs
Publication statusPublished - 15. Jul 2020

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