46 citations · 201 across the 7 of their papers we have counts for
7 papers
Effective delta sources and Newtonian limit in nonlocal gravity
Thomas M. Sangy, Nicolò Burzillà, Breno L. Giacchini +1
We investigate the Newtonian limit of a class of nonlocal gravity models with exponential form factors . Our main goal is to identify simil…
Action principle selection of regular black holes
Breno L. Giacchini, Tibério de Paula Netto, Leonardo Modesto
We elaborate on the role of higher-derivative curvature invariants as a quantum selection mechanism of regular spacetimes in the framework of the Lorentzian path integral approach…
Higher-order regularity in local and nonlocal quantum gravity
Nicolò Burzillà, Breno L. Giacchini, Tibério de Paula Netto +1
In the present work we investigate the Newtonian limit of higher-derivative gravity theories with more than four derivatives in the action, including the non-analytic logarithmic t…
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…
Functional renormalization group approach and gauge dependence in gravity theories
Vítor F. Barra, Peter M. Lavrov, Eduardo Antonio dos Reis +2
We investigate the gauge symmetry and gauge fixing dependence properties of the effective average action for quantum gravity models of general form. Using the background field form…
Vacuum effective actions and mass-dependent renormalization in curved space
Sebastián A. Franchino-Viñas, Tibério de Paula Netto, Omar Zanusso
We review past and present results on the non-local form-factors of the effective action of semiclassical gravity in two and four dimensions computed by means of a covariant expans…
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…