In:
Universe, MDPI AG, Vol. 7, No. 5 ( 2021-05-14), p. 148-
Abstract:
It is well known that General Relativity cannot be considered under the standard of a perturbatively renormalizable quantum field theory, but asymptotic safety is taken into account as a possibility for the formulation of gravity as a non-perturbative renormalizable theory. Recently, the entropy argument has however stepped into the discussion claiming for a “no-go” to the asymptotic safety argument. In this paper, we present simple counter-examples, considering alternative theories of gravity, to the entropy argument as further indications, among others, on the possible flows in the assumptions on which the latter is based. We considered different theories, namely curvature-based extensions of General Relativity as f(R), f(G), extensions of teleparallel gravity as f(T), and Horava–Lifshitz gravity, working out the explicit spherically symmetric solutions in order to make a comparison between power counting and the entropy argument. Even in these cases, inconsistencies were found.
Type of Medium:
Online Resource
ISSN:
2218-1997
DOI:
10.3390/universe7050148
Language:
English
Publisher:
MDPI AG
Publication Date:
2021
detail.hit.zdb_id:
2813994-X
