Quantum equivalence of $f(R)$ gravity and scalar-tensor theories
General Relativity and Quantum Cosmology
2018-03-07 v2 High Energy Physics - Theory
Abstract
We investigate whether the classical equivalence of gravity and its formulation as scalar-tensor theory still holds at the quantum level. We explicitly compare the corresponding one-loop divergences and find that the equivalence is broken by off-shell quantum corrections, but recovered on-shell.
Keywords
Cite
@article{arxiv.1711.07486,
title = {Quantum equivalence of $f(R)$ gravity and scalar-tensor theories},
author = {Michael S. Ruf and Christian F. Steinwachs},
journal= {arXiv preprint arXiv:1711.07486},
year = {2018}
}
Comments
7 pages, 1 figure; references added, accepted for publication in Phys. Rev. D