33 citations · 51 across the 5 of their papers we have counts for
5 papers
Asymptotic behaviour of the derivative expansion in the ERG
Tim R. Morris
We show that the derivative expansion of the exact (functional) renormalization group is a divergent series in any dimension, both for an exponential cutoff and more general smooth…
Renormalisation of postquantum-classical gravity
Andrzej Grudka, Tim R. Morris, Jonathan Oppenheim +2
One of the obstacles to reconciling quantum theory with general relativity, is constructing a theory which is both consistent with observation, and and gives finite answers at high…
Ultraviolet finite resummation of perturbative quantum gravity
Tim R. Morris
If the metric is chosen to depend exponentially on the conformal factor, and if one works in a gauge where the conformal factor has the wrong sign propagator, perturbative quantum…
Manifestly gauge invariant QED
Stefano Arnone, Tim R. Morris, Oliver J. Rosten
We uncover a method of calculation that proceeds at every step without fixing the gauge or specifying details of the regularisation scheme. Results are obtained by iterated use of…
A gauge invariant regulator for the ERG
S. Arnone, Yu. A. Kubyshin, T. R. Morris +1
A gauge invariant regularisation for dealing with pure Yang-Mills theories within the exact renormalization group approach is proposed. It is based on the regularisation via covari…