Effective universality in quantum gravity

• Verfasst von: Eichhorn, Astrid [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Reichert, Manuel [VerfasserIn]
• Titel: Effective universality in quantum gravity
• Verf.angabe: Astrid Eichhorn, Peter Labus, Jan M. Pawlowski, and Manuel Reichert
• E-Jahr: 2018
• Jahr: 24 Jul 2018
• Umfang: 24 S.
• Fussnoten: Gesehen am 18.12.2018
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018), Artikel-ID 1804.00012
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: High Energy Physics - Theory
• Sach-SW: General Relativity and Quantum Cosmology
• K10plus-PPN: 1585636398

Abstract

We investigate the asymptotic safety scenario for a scalar-gravity system. This system contains two avatars of the dynamical Newton coupling, a gravitational self-coupling and a scalar-graviton coupling. We uncover an effective universality for the dynamical Newton coupling on the quantum level: its momentum-dependent avatars are in remarkable quantitative agreement in the scaling regime of the UV fixed point. For the background Newton coupling, this effective universality is not present, but qualitative agreement remains.