17 citations · 34 across the 4 of their papers we have counts for
4 papers
Provable properties of asymptotic safety in approximation
Alex Mitchell, Tim R. Morris, Dalius Stulga
We study an approximation to asymptotic safety, using a family of non-adaptive cutoffs, kept general to test for universality. Matching solutions on the four-dimensional sph…
Multi-wavelength study of Mrk 421 during a TeV flare
A. Gokus, A. Kreikenbohm, K. Leiter +31
The blazar Mrk 421 shows frequent, short flares in the TeV energy regime. Due to the fast nature of such episodes, we often fail to obtain sufficient simultaneous information about…
The continuum limit of quantum gravity at second order in perturbation theory
Matthew Kellett, Alex Mitchell, Tim R. Morris
We show that perturbative quantum gravity based on the Einstein-Hilbert action, has a novel continuum limit. The renormalized trajectory emanates from the Gaussian fixed point alon…
The continuum limit of quantum gravity at first order in perturbation theory
Alex Mitchell, Tim R. Morris
The Wilsonian renormalization group (RG) properties of the conformal factor of the metric are profoundly altered by the fact that it has a wrong-sign kinetic term. The result is a…