Para depositar en Docta Complutense, identifícate con tu correo @ucm.es en el SSO institucional: Haz clic en el desplegable de INICIO DE SESIÓN situado en la parte superior derecha de la pantalla. Introduce tu correo electrónico y tu contraseña de la UCM y haz clic en el botón MI CUENTA UCM, no autenticación con contraseña.
 

Tidal forces in f(R) theories of gravity

Loading...
Thumbnail Image

Full text at PDC

Publication date

2014

Advisors (or tutors)

Editors

Journal Title

Journal ISSN

Volume Title

Publisher

APS
Citations
Google Scholar

Citation

Abstract

Despite the extraordinary attention that modified gravity theories have attracted over the past decade, the geodesic deviation equation in this context has not received proper formulation thus far. This equation provides an elegant way to investigate the timelike, null and spacelike structure of spacetime geometries. In this investigation we provide the full derivation of this equation in situations where general relativity has been extended in Robertson-Walker background spacetimes. We find that for null geodesics the contribution arising from the geometrical new terms is in general nonzero. Finally we apply the results to a well-known class of f(R) theories, compare the results with general relativity predictions and obtain the equivalent area distance relation.

Research Projects

Organizational Units

Journal Issue

Description

Unesco subjects

Keywords

Collections