Work

Modified Gravity Models Admitting Second Order Equations of Motion

Year: 2015

Type: article

Abstract: The aim of this paper is to find higher order geometrical corrections to the Einstein–Hilbert action that can lead only to second order equations of motion. The metric formalism is used, and static spherically-symmetric and Friedmann–Lemaître space-times are considered, in four dimensions. The Fulling, King, Wybourne and Cummings (FKWC) basis is introduced in order to consider all of the possible invariant scalars, and both polynomial and non-polynomial gravities are investigated.

Source: Entropy

DOI: 10.3390/e17106643

Authors: Aimeric Colléaux, Sergio Zerbini

Institutions: University of Trento, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

OpenAlex ID: W1928730331

FWCI: 0.379

Cites: 37

Cited by: 5

Related to: 10