18 citations · 30 across the 2 of their papers we have counts for
9 papers
Newtonian potential in higher-derivative quantum gravity
Nicolò Burzillà, Breno L. Giacchini, Tibério de Paula Netto +1
We hereby derive the Newtonian metric potentials for the fourth-derivative gravity including the one-loop logarithm quantum corrections. It is explicitly shown that the behavior of…
On the Vilkovisky-DeWitt approach and renormalization group in effective quantum gravity
Breno L. Giacchini, Tibério de Paula Netto, Ilya L. Shapiro
The effective action in quantum general relativity is strongly dependent on the gauge-fixing and parametrization of the quantum metric. As a consequence, in the effective approach…
Light bending by a slowly rotating source in quadratic theories of gravity
Luca Buoninfante, Breno L. Giacchini
In this paper we study the light bending caused by a slowly rotating source in the context of quadratic theories of gravity, in which the Einstein--Hilbert action is extended by ad…
Vilkovisky unique effective action in quantum gravity
Breno L. Giacchini, Tibério de Paula Netto, Ilya L. Shapiro
The divergent part of the one-loop Vilkovisky unique effective action for quantum Einstein gravity is evaluated in the general parametrization of the quantum field, including the s…
Background field method and nonlinear gauges
Breno L. Giacchini, Peter M. Lavrov, Ilya L. Shapiro
We present a reformulation of the background field method for Yang-Mills type theories, based on using a superalgebra of generators of BRST and background field transformations. Th…
Effective delta sources and regularity in higher-derivative and ghost-free gravity
Breno L. Giacchini, Tibério de Paula Netto
It is shown that polynomial gravity theories with more than four derivatives in each scalar and tensor sectors have a regular weak-field limit, without curvature singularities. Thi…