Regularization of Newtonian-limit singularities in higher-derivative gravity models

Giacchini，Breno L.

2022-03-01

10.1393/ncc/i2022-22039-2

Nuovo Cimento C-Colloquia and Communications in Physics   Impact Factor & Quartile

2037-4909

1826-9885

In this talk we review some recent results concerning the occurrence of regular solutions in local and non-local higher-derivative gravity models. We show that, even though fourth-order gravity still has curvature singularities, any local model with at least six derivatives in the spin-2 and spin-0 sectors has a regular Newtonian limit, without curvature singularities, when coupled to a point-like source. Also, we discuss the general conditions for the regularity of the higher-order curvature invariants, in both local and non-local models, in the linearised limit.

ESCI

English

First ; Corresponding

Physics

Physics, Multidisciplinary

WOS:000832881700011

SOC ITALIANA FISICA

2-s2.0-85133806354

Scopus

Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China

Giacchini，Breno L.. Regularization of Newtonian-limit singularities in higher-derivative gravity models[J]. Nuovo Cimento C-Colloquia and Communications in Physics,2022,45(2).

Giacchini，Breno L..(2022).Regularization of Newtonian-limit singularities in higher-derivative gravity models.Nuovo Cimento C-Colloquia and Communications in Physics,45(2).

Giacchini，Breno L.."Regularization of Newtonian-limit singularities in higher-derivative gravity models".Nuovo Cimento C-Colloquia and Communications in Physics 45.2(2022).