From renormalization group flows to cosmology

Abstract

According to the asymptotic-safety conjecture, the gravitational renormalization group flow features an ultraviolet-attractive fixed point that makes the theory renormalizable and ultraviolet complete. The existence of this fixed point entails an antiscreening of the gravitational interaction at short distances. In this paper we review the state-of-the-art of phenomenology of Asymptotically Safe Gravity, focusing on the implications of the gravitational antiscreening in cosmology.

arXiv comment33 pages, 4 figures. Review for the special issue "Coarse Graining in Quantum Gravity: Bridging the Gap between Microscopic Models and Spacetime-Physics", Frontiers in Physics

References in corpus (90)

• Exact evolution equation for the effective potential
• Nonperturbative Evolution Equation for Quantum Gravity
• The Exact Renormalisation Group and Approximate Solutions
• Encyclopaedia Inflationaris
• Renormalization group improved black hole spacetimes
• Spectral Dimension of the Universe
• Fixed points of quantum gravity
• Renormalization Group Flow of Quantum Gravity in the Einstein-Hilbert Truncation
• Ultraviolet Fixed Point and Generalized Flow Equation of Quantum Gravity
• Quantum Einstein Gravity
• Nonperturbative Quantum Gravity
• Flow Equation of Quantum Einstein Gravity in a Higher-Derivative Truncation
• Inflationary paradigm in trouble after Planck2013
• Asymptotic safety in higher-derivative gravity
• Non-Trivial Ultraviolet Fixed Point in Quantum Gravity
• Fixed Points of Higher Derivative Gravity
• Fractal Spacetime Structure in Asymptotically Safe Gravity
• Cosmology of the Planck Era from a Renormalization Group for Quantum Gravity
• Ultraviolet properties of f(R)-Gravity
• Matter matters in asymptotically safe quantum gravity
• The Running Gravitational Couplings
• Spacetime Structure of an Evaporating Black Hole in Quantum Gravity
• Asymptotically Safe Lorentzian Gravity
• Further evidence for asymptotic safety of quantum gravity
• Taming perturbative divergences in asymptotically safe gravity
• Renormalization group improved gravitational actions: a Brans-Dicke approach
• The Gravitational Two-Loop Counterterm is Asymptotically Safe
• Asymptotic safety in the f(R) approximation
• Asymptotically Safe Inflation
• Running Newton Constant, Improved Gravitational Actions, and Galaxy Rotation Curves
• Quantum Gravity at Astrophysical Distances?
• One force to rule them all: asymptotic safety of gravity with matter
• The Renormalization Group flow of unimodular f(R) gravity
• Quantum gravity on foliated spacetime - asymptotically safe and sound
• Asymptotic safety of quantum gravity beyond Ricci scalars
• Renormalization group fixed points of foliated gravity-matter systems
• Proper Time Flow Equation for Gravity
• Quantum Gravity effects near the null black hole singularity
• Asymptotically safe cosmology - a status report
• Resolving Spacetime Singularities within Asymptotic Safety
• Aspects of asymptotic safety for quantum gravity
• From Big Bang to Asymptotic de Sitter: Complete Cosmologies in a Quantum Gravity Framework
• Form Factors in Asymptotic Safety: conceptual ideas and computational toolbox
• Dynamical renormalization of black-hole spacetimes
• Renormalization-group running cosmologies - a scale-setting procedure
• Entropy signature of the running cosmological constant
• A proper fixed functional for four-dimensional Quantum Einstein Gravity
• The local potential approximation in quantum gravity
• How perturbative is quantum gravity?
• Asymptotically safe f(R)-gravity coupled to matter I: the polynomial case
• The R^2 phase-diagram of QEG and its spectral dimension
• Asymptotic safety of higher derivative quantum gravity non-minimally coupled with a matter system
• On unimodular quantum gravity
• Cosmological Perturbations in Renormalization Group Derived Cosmologies
• On the number of relevant operators in asymptotically safe gravity
• Asymptotically safe inflation from quadratic gravity
• Status of the asymptotic safety paradigm for quantum gravity and matter
• Inflationary solutions in asymptotically safe f(R) theories
• Exact renormalization group with optimal scale and its application to cosmology
• An effective action for asymptotically safe gravity
• On the covariant formalism of the effective field theory of gravity and leading order corrections
• Consistency of matter models with asymptotically safe quantum gravity
• Towards reconstructing the quantum effective action of gravity
• Towards conditions for black-hole singularity-resolution in asymptotically safe quantum gravity
• Gravitational collapse in Quantum Einstein Gravity
• Scale Setting for Self-consistent Backgrounds
• Singularity-free gravitational collapse and asymptotic safety
• Cosmological bounds on the field content of asymptotically safe gravity-matter models
• On the physical mechanism underlying Asymptotic Safety
• Cosmic Censorship in Quantum Einstein Gravity
• A Safe Beginning for the Universe?
• On de Sitter solutions in asymptotically safe $f(R)$ theories
• Computing the Effective Action with the Functional Renormalization Group
• Bouncing and emergent cosmologies from ADM RG flows
• Primordial Entropy Production and Lambda-driven Inflation from Quantum Einstein Gravity
• Renormalization group scale-setting in astrophysical systems
• Renormalization group scale-setting from the action - a road to modified gravity theories
• Higher Derivative Gravity from the Universal Renormalization Group Machine
• The phase diagram of quantum gravity from diffeomorphism-invariant RG-flows
• Consistent early and late time cosmology from the RG flow of gravity
• Avoidance of singularities in asymptotically safe Quantum Einstein Gravity
• Functional Renormalization Group flows on Friedman-Lema\^ıtre-Robertson-Walker backgrounds
• Singularity free gravitational collapse in an effective dynamical quantum spacetime
• Asymptotically Safe gravity and non-singular inflationary Big Bang with vacuum birth
• Gravitational antiscreening in stellar interiors
• Non-Singular Black Holes, the Cosmological Constant and Asymptotic Safety
• Entropy Production during Asymptotically Safe Inflation
• Time transients in the quantum corrected Newtonian potential induced by a massless nonminimally coupled scalar field
• Antiscreening in perturbative quantum gravity and resolving the Newtonian singularity
• Bouncing Cosmologies

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• Formation and evaporation of quantum black holes from the decoupling mechanism in quantum gravity
• Accretion disk around a Schwarzschild black hole in asymptotic safety
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• Atom falling into a quantum corrected charged black hole and HBAR entropy
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• Scale-invariance at the core of quantum black holes
• Schwarzschild-like Wormholes in Asymptotically Safe Gravity
• Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
• Inverse logarithmic correction in the HBAR entropy of an atom falling into a renormalization group improved charged black hole
• Is asymptotically safe inflation eternal?
• Shift-symmetric Horndeski gravity in the asymptotic-safety paradigm
• On the ultraviolet behavior of conformally reduced quadratic gravity
• $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}$ in the Asymptotically Safe Standard Model
• Lectures in Quantum Gravity
• Image of Quantum Improved Regular Kerr Black Hole and Parameter Constraints from EHT Observations
• Time Evolution and Thermal Renormalization Group Flow in Cosmology
• Constraining the swiss-cheese IR-fixed point cosmology with cosmic expansion
• Vacuum Energy and Renormalization of the Field-Independent Term
• Causality, unitarity and stability in quantum gravity: a non-perturbative perspective
• Phenomenological footprints of Lambda varying gravity theories inspired from quantum gravity models in the multi-messenger era
• Regular Black Hole Cores via Gravitational Evanescence of Collapsing Matter
• Thermal RG Flow of AS Quantum Gravity
• Invariant Renormalization-Group improvement
• Shadow of rotating black holes with consistent thermodynamics
• Asymptotic Safety and the Cosmic Coincidence Problem
• On the Quantum Improved Affine Gravity
• Renormalization group approaches to Quantum Gravity and Tensions in Modern Cosmology