Viability of quantum-gravity induced ultraviolet completions for matter

• Verfasst von: Eichhorn, Astrid [VerfasserIn]
• Verfasst von: Held, Aaron [VerfasserIn]
• Titel: Viability of quantum-gravity induced ultraviolet completions for matter
• Verf.angabe: Astrid Eichhorn and Aaron Held
• E-Jahr: 2017
• Jahr: 30 October 2017
• Umfang: 26 S.
• Fussnoten: Gesehen am 22.11.2017
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2017
• Band/Heft Quelle: 96(2017,8) Artikel-Nummer 086025, 26 Seiten
• ISSN Quelle: 2469-9969
• DOI: doi:10.1103/PhysRevD.96.086025
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565601319

Abstract

We highlight how the existence of an ultraviolet completion for interacting standard-model type matter puts constraints on the viable microscopic dynamics of asymptotically safe quantum gravity within truncated Renormalization Group flows. A first constraint—the weak-gravity bound—is rooted in the destruction of quantum scale-invariance in the matter system by strong quantum-gravity fluctuations. A second constraint arises by linking Planck-scale dynamics to the dynamics at the electroweak scale. Specifically, we delineate how to extract a prediction of the top quark mass from asymptotically safe gravity and stress that a finite top mass could be difficult to accommodate in a significant part of the gravitational coupling space.