Cosmological Evolution in 1/R-Gravity Theory

Preprint

8 August 2003

preprint
Published by arXiv in arXiv

Abstract

Recently, corrections to Einstein-Hilbert action that become important at small curvature are proposed, which may explain the current cosmic accelerating expansion without the mysterious so called dark energy. We derive the Modified Friedmann equation by the Palatini variational principle and its first to third order approximated equations. We discuss various cosmological consequences of those Modified Friedmann equations and compare the results they give with the observational data.

Keywords

MODIFIED FRIEDMANN EQUATIONS
COSMOLOGICAL EVOLUTION
THEORY RECENTLY
GRAVITY THEORY
1/R GRAVITY
DARK ENERGY
EVOLUTION

All Related Versions

Version 1, 2003-08-02, ArXiv
Version 2, 2003-08-08, ArXiv
Version 3, 2003-09-09, ArXiv
Version 4, 2003-12-20, ArXiv
Published version: Classical and Quantum Gravity, 21 (4), 951.

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