13 papers
Starobinsky-inflation in asymptotically safe shift-symmetric scalar-tensor theory
Benjamin Koch, Cristobal Laporte, Frank Saueressig
We investigate the constraining power of scalaron-driven inflation on asymptotically safe scalar-tensor theories. Starting from a Horndeski-type theory and applying a renormalizati…
Scaling Solutions of Matter Form Factors in Asymptotically Safe Quantum Gravity
Alfio M. Bonanno, Diego Buccio, Emiliano M. Glaviano +1
We investigate the renormalization group flow of a gravity--matter system in which a scalar field is minimally coupled to Einstein gravity and its kinetic term is given by a scale-…
Cauchy Horizon (In)Stability of Regular Black Holes
Alfio Bonanno, Antonio Panassiti, Frank Saueressig
A common feature of regular black hole spacetimes is the presence of an inner Cauchy horizon. The analogy to the Reissner-Nordström solution then suggests that these geometries su…
Foliated Asymptotically Safe Gravity: Lorentzian Signature Fluctuations from the Wick Rotation
Frank Saueressig, Jian Wang
Asymptotic Safety constitutes a promising mechanism for a consistent and predictive high-energy completion of the gravitational interactions. To date, most results on the interacti…
Comment on Path integral measure and RG equations for gravity
Aaron Held, Benjamin Knorr, Jan M. Pawlowski +4
Asymptotic safety is a candidate for a predictive quantum theory of gravity and matter. Recent works (arXiv:2412.10194 and arXiv:2412.14108) challenged this scenario. We show that…
Zooming into the horizon region of black hole-type objects
Jesse Daas, Cristobal Laporte, Frank Saueressig +1
A universal prediction of quantum gravity is that the dynamics of general relativity is augmented by interactions that are of higher order in the spacetime curvature. Numerical exp…