6 papers
Einstein-Cartan gravity, Asymptotic Safety, and the running Immirzi parameter
Jan-Eric Daum, Martin Reuter
In this paper we analyze the functional renormalization group flow of quantum gravity on the Einstein-Cartan theory space. The latter consists of all action functionals depending o…
Running Immirzi Parameter and Asymptotic Safety
Jan-Eric Daum, Martin Reuter
We explore the renormalization group (RG) properties of quantum gravity, using the vielbein and the spin connection as the fundamental field variables. We require the effective act…
Renormalization Group Flow of the Holst Action
J. -E. Daum, M. Reuter
The renormalization group (RG) properties of quantum gravity are explored, using the vielbein and the spin connection as the fundamental field variables. The scale dependent effect…
The Effective Potential of the Conformal Factor in Asymptotically Safe Quantum Gravity
Jan-Eric Daum, Martin Reuter
The effective potential of the conformal factor in the effective average action approach to Quantum Einstein Gravity is discussed. It is shown, without invoking any truncation or o…
Running Gauge Coupling in Asymptotically Safe Quantum Gravity
Jan-Eric Daum, Ulrich Harst, Martin Reuter
We investigate the non-perturbative renormalization group behavior of the gauge coupling constant using a truncated form of the functional flow equation for the effective average a…
Effective Potential of the Conformal Factor: Gravitational Average Action and Dynamical Triangulations
Jan-Eric Daum, Martin Reuter
We discuss the effective potential of the conformal factor in the effective average action approach to Quantum Einstein Gravity. Without invoking any truncation or other approximat…