Power-law cosmic expansion in f(R) gravity models

Naureen Goheer; Julien Larena; Peter K. S. Dunsby

doi:10.1103/PhysRevD.80.061301

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Article de revue

Power-law cosmic expansion in f(R) gravity models

Naureen Goheer, Julien Larena et Peter K. S. Dunsby

Physical review. D, Particles, fields, gravitation, and cosmology, Vol.80(6), 061301

01/09/2009

DOI: https://doi.org/10.1103/PhysRevD.80.061301

Résumé

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Particles & Fields

Science & Technology

We show that within the class of f(R) gravity theories, Friedmann-Lemaitre-Robertson-Walker power-law perfect fluid solutions only exist for R-n gravity. This significantly restricts the set of exact cosmological solutions which have similar properties to what is found in standard general relativity.

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Détails

Titre: Power-law cosmic expansion in f(R) gravity models
Créateurs - sans rôle: Naureen Goheer - Univ Cape Town, Dept Math & Appl Math, ZA-7925 Cape Town, South Africa
Julien Larena - Univ Cape Town, Dept Math & Appl Math, ZA-7925 Cape Town, South Africa
Peter K. S. Dunsby - Univ Cape Town, Dept Math & Appl Math, ZA-7925 Cape Town, South Africa
Détails de publication: Physical review. D, Particles, fields, gravitation, and cosmology, Vol.80(6), 061301
Éditeur: Amer Physical Soc
Nombre de pages: 4
Note de subvention: Claude Leon Foundation National Research Foundation (South Africa); National Research Foundation - South Africa
Identifiants: 99147637709311
Unité académique: Laboratoire Univers et Particules de Montpellier - LUPM
Langue: English
Type de ressource: Journal article