59 citations · 158 across the 14 of their papers we have counts for
14 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…
Equivalence of scalar-tensor theories and scale-dependent gravity
Philipp Neckam, Christian Käding, Benjamin Koch +4
We present a novel equivalence between scale-dependent gravity and scalar-tensor theories that have only a single scalar field with a canonical kinetic term in the Einstein frame a…
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…
Rethinking the Effective Field Theory formulation of Gravity
Jesse Daas, Cristobal Laporte, Frank Saueressig +1
General relativity is highly successful in explaining a wide range of gravitational phenomena including the gravitational waves emitted by binary systems and the shadows cast by su…
On the impact of perturbative counterterms on black holes
Jesse Daas, Cristobal Laporte, Frank Saueressig
We determine the corrections to the Schwarzschild geometry arising from including the Goroff- Sagnotti counterterm in the gravitational dynamics. We find that static, asymptoticall…
The effects of running gravitational coupling on three dimensional black holes
Angel Rincon, Benjamin Koch, Cristobal Laporte +2
In the present work, we investigate the consequences of running gravitational coupling on the properties of the three-dimensional BTZ black hole. We take as starting point the func…
Cosmological constraints on scale-dependent cosmology
Pedro D. Alvarez, Benjamin Koch, Cristobal Laporte +1
This paper examines a cosmological model of scale-dependent gravity. The gravitational action is taken to be the Einstein-Hilbert term supplemented with a cosmological constant, wh…
Gauge boson masses from the scale-dependent interplay between the gravitational and the electroweak sector
Cristobal Laporte, Benjamin Koch, Felipe Canales +1
In this paper we explore the interplay of scale dependence arising in the electroweak and the gravitational sector. Using the method of variational parameter setting leads naturall…
Evidence for a novel shift-symmetric universality class from the functional renormalization group
Cristobal Laporte, Nora Locht, Antonio D. Pereira +1
Wetterich's equation provides a powerful tool for investigating the existence and universal properties of renormalization group fixed points exhibiting quantum scale invariance. Mo…
Statefinder analysis of scale-dependent cosmology
Pedro D. Alvarez, Benjamin Koch, Cristobal Laporte +2
We study the statefinder parameters of a cosmological model based on scale-dependent gravity. The effective Einstein field equations come from an average effective action. From the…
Scalar-Tensor theories within Asymptotic Safety
Cristobal Laporte, Antonio D. Pereira, Frank Saueressig +1
Asymptotic Safety provides an elegant mechanism for obtaining a consistent high-energy completion of gravity and gravity-matter systems. Following the initial idea by Steven Weinbe…
Can scale-dependent cosmology alleviate the tension?
Pedro D. Alvarez, Benjamin Koch, Cristobal Laporte +1
Scale-dependence is a common feature to all effective models of quantum gravity. In this paper, a cosmological model based on the scale-dependent scenario of gravity is presented.…
A technique for natural gauge boson masses
Benjamin Koch, Cristobal Laporte
In this work, a novel mechanism for spontaneous symmetry breaking is presented. This mechanism avoids quadratic divergencies and is thus capable of addressing the hierarchy problem…
Cosmological constant problem: deflation during inflation
Felipe Canales, Benjamin Koch, Cristobal Laporte +1
We argue that the discrepancy between the Planck mass scale and the observed value of the cosmological constant can be largely attenuated if those quantities are understood as a re…