Perturbation of the metric around a spherical body from a nonminimal coupling between matter and curvature

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Nuno Castel-Branco (Author) Other; Jorge Páramos (Author) FCUP; Riccardo March (Author) Other

Journal

Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 735

Initial page: 25

ISSN: 0370-2693

Publisher: Elsevier

Scientific classification

CORDIS: Physical sciences > Physics > Relativity

FOS: Natural sciences > Physical sciences

Other information

DOI: 10.1016/j.physletb.2014.06.001

Abstract (EN): In this work, the effects of a nonminimally coupled model of gravity on a perturbed Minkowski metric are presented. The action functional of the model involves two functions, f1(R) and f2(R) , of the Ricci scalar curvature R : the former extends the usual linear term found in the Einstein–Hilbert Lagrangian, while the latter is multiplied by the matter Lagrangian density, thus introducing an explicit nonminimal coupling.

Language: Portuguese

Type (Professor's evaluation): Scientific