168 citations · 1.6k across the 33 of their papers we have counts for
24 papers · 1 filter
Spectral Functions of Lorentzian Quantum Gravity
Gabriel Assant, Daniel F. Litim, Manuel Reichert
We compute spectral functions of graviton modes in Lorentzian quantum gravity, interpolating between classical general relativity and an asymptotically safe ultraviolet fixed point…
Towards Two-to-Two Scattering of Scalars in Asymptotically Safe Quantum Gravity
Angelo P. Chiesa, Jan M. Pawlowski, Manuel Reichert
We compute the graviton-mediated two-to-two scattering amplitude and cross section for scalar particles in asymptotically safe quantum gravity. Specifically, we compute the full mo…
Yukawa interactions in Quantum Gravity
Gustavo P. de Brito, Manuel Reichert, Marc Schiffer
We present the first complete next-to-leading-order analysis of a Yukawa system within the framework of asymptotically safe quantum gravity. Our results are obtained through a syst…
Self-consistent graviton spectral function in Lorentzian quantum gravity
Jan M. Pawlowski, Manuel Reichert, Jonas Wessely
We present the first fully self-consistent computation of the graviton spectral function in quantum gravity, using the spectral renormalisation group for gravity put forward in arX…
Matter Spectral Functions from Quantum Gravity
Varun Kher, Brandon King, Daniel F. Litim +1
We investigate Lorentzian quantum gravity coupled to a template matter sector with gauge fields, scalars and fermions. In the absence of quantised gravity, the matter sector by its…
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…
Quantum Gravity from dynamical metric fluctuations
Jan M. Pawlowski, Manuel Reichert
In this contribution, we discuss the asymptotic safety scenario for quantum gravity by evaluating the correlation functions of dynamical metric fluctuations. This is done with a fu…
Spectral Functions of Gauge Theories with Banks-Zaks Fixed Points
Yannick Kluth, Daniel Litim, Manuel Reichert
We investigate spectral functions of matter-gauge theories that are asymptotically free in the ultraviolet and display a Banks-Zaks conformal fixed point in the infrared. Using per…
The Asymptotically Safe Standard Model: From quantum gravity to dynamical chiral symmetry breaking
Álvaro Pastor-Gutiérrez, Jan M. Pawlowski, Manuel Reichert
We present a comprehensive non-perturbative study of the phase structure of the asymptotically safe Standard Model. The physics scales included range from the asymptotically safe t…
Renormalised spectral flows
Jens Braun, Yong-rui Chen, Wei-jie Fu +11
We derive renormalised finite functional flow equations for quantum field theories in real and imaginary time that incorporate scale transformations of the renormalisation conditio…
Lorentzian quantum gravity and the graviton spectral function
Jannik Fehre, Daniel F. Litim, Jan M. Pawlowski +1
We present the first direct and non-perturbative computation of the graviton spectral function in quantum gravity. This is achieved with the help of a novel Lorentzian renormalisat…
Reconstructing the graviton
Alfio Bonanno, Tobias Denz, Jan M. Pawlowski +1
We reconstruct the Lorentzian graviton propagator in asymptotically safe quantum gravity from Euclidean data. The reconstruction is applied to both the dynamical fluctuation gravit…
Quantum gravity: a fluctuating point of view
Jan M. Pawlowski, Manuel Reichert
In this contribution, we discuss the asymptotic safety scenario for quantum gravity with a functional renormalisation group approach that disentangles dynamical metric fluctuations…
Towards the QED beta function and renormalons at and
Nicola Andrea Dondi, Gerald V. Dunne, Manuel Reichert +1
We determine the and contributions to the QED beta function stemming from the closed set of nested diagrams. At order we discover a new logarithmic br…
Curvature dependence of quantum gravity with scalars
Benjamin Bürger, Jan M. Pawlowski, Manuel Reichert +1
We compute curvature-dependent graviton correlation functions and couplings as well as the full curvature potential in asymptotically safe quantum gravity coupled to scalars…
Analytic Coupling Structure of Large (Super) QED and QCD
Nicola Andrea Dondi, Gerald V. Dunne, Manuel Reichert +1
We study the analytic properties of the 't Hooft coupling expansion of the beta-function at the leading nontrivial large- order for QED, QCD, Super QED and Super QCD. For each…
Higgs scalar potential in asymptotically safe quantum gravity
Jan M. Pawlowski, Manuel Reichert, Christof Wetterich +1
The effect of gravitational fluctuations on the quantum effective potential for scalar fields is a key ingredient for predictions of the mass of the Higgs boson, understanding the…
How perturbative is quantum gravity?
Astrid Eichhorn, Stefan Lippoldt, Jan M. Pawlowski +2
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 dyn…
Effective universality in quantum gravity
Astrid Eichhorn, Peter Labus, Jan M. Pawlowski +1
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 sc…
Curvature dependence of quantum gravity
Nicolai Christiansen, Kevin Falls, Jan M. Pawlowski +1
We investigate the phase diagram of quantum gravity with a vertex expansion about constantly-curved backgrounds. The graviton two- and three-point function are evaluated with a spe…
One force to rule them all: asymptotic safety of gravity with matter
Nicolai Christiansen, Daniel F. Litim, Jan M. Pawlowski +1
We study the asymptotic safety conjecture for quantum gravity in the presence of matter fields. A general line of reasoning is put forward explaining why gravitons dominate the hig…
Towards apparent convergence in asymptotically safe quantum gravity
Tobias Denz, Jan M. Pawlowski, Manuel Reichert
The asymptotic safety scenario in gravity is accessed within the systematic vertex expansion scheme for functional renormalisation group flows put forward in \cite{Christiansen:201…
Asymptotic safety of gravity-matter systems
Jan Meibohm, Jan M. Pawlowski, Manuel Reichert
We study the ultraviolet stability of gravity-matter systems for general numbers of minimally coupled scalars and fermions. This is done within the functional renormalisation group…
Local Quantum Gravity
Nicolai Christiansen, Benjamin Knorr, Jan Meibohm +2
We investigate the ultraviolet behaviour of quantum gravity within a functional renormalisation group approach. The present setup includes the full ghost and graviton propagators a…