Work

Wormhole geometries in f ( R ) modified theories of gravity

Year: 2009

Type: article

Abstract: In this work, we construct traversable wormhole geometries in the context of $f(R)$ modified theories of gravity. We impose that the matter threading the wormhole satisfies the energy conditions, so that it is the effective stress-energy tensor containing higher order curvature derivatives that is responsible for the null energy condition violation. Thus, the higher order curvature terms, interpreted as a gravitational fluid, sustain these nonstandard wormhole geometries, fundamentally different from their counterparts in general relativity. In particular, by considering specific shape functions and several equations of state, exact solutions for $f(R)$ are found.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.80.104012

Authors: Francisco S. N. Lobo, Miguel A. Oliveira

Institutions: University of Lisbon, Centro de Física Teórica e Computacional

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Universidade de Lisboa, Fundação para a Ciência e a Tecnologia

OpenAlex ID: W1968798764

FWCI: 3.667

Cites: 109

Cited by: 628

Related to: 10