Modified Gauss-Bonnet theory as gravitational alternative for dark energy

Preprint

8 August 2005

preprint
Published by arXiv in arXiv

Abstract

We suggest the modified gravity where some arbitrary function of Gauss-Bonnet (GB) term is added to Einstein action as gravitational dark energy. It is shown that such theory may pass solar system tests. It is demonstrated that modified GB gravity may describe the most interesting features of late-time cosmology: the transition from deceleration to acceleration, crossing the phantom divide, current acceleration with effective (cosmological constant, quintessence or phantom) equation of state of the universe.

Keywords

GRAVITATIONAL ALTERNATIVE
MODIFIED GAUSS
BONNET THEORY
GAUSS BONNET
DARK ENERGY
PHANTOM
GRAVITY
ENERGY

All Related Versions

Version 1, 2005-08-08, ArXiv
Version 2, 2005-10-06, ArXiv
Published version: , 631 (1-2), 1.

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