How perturbative is quantum gravity?

Astrid Eichhorn; Stefan Lippoldt; Jan M. Pawlowski; Manuel Reichert; Marc Schiffer

Physics Letters B (May 2019)

How perturbative is quantum gravity?

Astrid Eichhorn,
Stefan Lippoldt,
Jan M. Pawlowski,
Manuel Reichert,
Marc Schiffer

Affiliations

Astrid Eichhorn: Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany; Corresponding authors.
Stefan Lippoldt: Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany; Corresponding authors.
Jan M. Pawlowski: Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany; Corresponding authors.
Manuel Reichert: Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany; CP3-Origins, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark; Corresponding authors.
Marc Schiffer: Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany; Corresponding authors.

Journal volume & issue: Vol. 792
pp. 310 – 314

Abstract

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We explore asymptotic safety of gravity-matter systems, discovering indications for a near-perturbative nature of these systems in the ultraviolet. Our results are based on the dynamical emergence of effective universality at the asymptotically safe fixed point. Our findings support the conjecture that an asymptotically safe completion of the Standard Model with gravity could be realized in a near-perturbative setting.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: https://www.sciencedirect.com/journal/physics-letters-b

About the journal