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Article

Regular Solutions in Higher-Derivative Gravity †

by
Breno L. Giacchini
1,* and
Tibério De Paula Netto
2
1
Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, Rio de Janeiro, RJ 22290-180, Brazil
2
Departamento de Física, ICE, Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-330, Brazil
*
Author to whom correspondence should be addressed.
†
Based on the talk given by B.L.G. at the Estate Quantistica Conference, Scalea, Italy, 11–15 June 2018.
Universe 2018, 4(12), 140; https://doi.org/10.3390/universe4120140
Submission received: 31 October 2018 / Revised: 27 November 2018 / Accepted: 29 November 2018 / Published: 2 December 2018
(This article belongs to the Special Issue Estate Quantistica Conference - Recent Developments in Gravity, Cosmology, and Mathematical Physics)
Versions Notes

Abstract

Local gravitational theories with more than four derivatives can have remarkable quantum properties. Namely, they can be super-renormalizable and may be unitary in the Lee-Wick sense, if the massive poles of the propagator are complex. It is important, therefore, to also explore the classical aspects of these theories. In this talk we present recent results in this direction. Specifically, we discuss the effect that that higher-order terms can have on the Newtonian potential and related singularities.
Keywords: higher-derivative gravity; Lee-Wick gravity; non-local gravity; spacetime singularities higher-derivative gravity; Lee-Wick gravity; non-local gravity; spacetime singularities

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MDPI and ACS Style

Giacchini, B.L.; De Paula Netto, T. Regular Solutions in Higher-Derivative Gravity. Universe 2018, 4, 140. https://doi.org/10.3390/universe4120140

AMA Style

Giacchini BL, De Paula Netto T. Regular Solutions in Higher-Derivative Gravity. Universe. 2018; 4(12):140. https://doi.org/10.3390/universe4120140

Chicago/Turabian Style

Giacchini, Breno L., and Tibério De Paula Netto. 2018. "Regular Solutions in Higher-Derivative Gravity" Universe 4, no. 12: 140. https://doi.org/10.3390/universe4120140

APA Style

Giacchini, B. L., & De Paula Netto, T. (2018). Regular Solutions in Higher-Derivative Gravity. Universe, 4(12), 140. https://doi.org/10.3390/universe4120140

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