Modified Gauss–Bonnet theory as gravitational alternative for dark energy

By Shin'ichi Nojiri, Sergei D. Odintsov. 2005

1,205 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/aa3d8b1f676f84003ba098872f805e015b531393

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In Astronomy and Astrophysics

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Modified Gravity and Cosmology (2011, background): “The cosmologies of these theories, and theories with inverse powers of αĜ+βR added to the Einstein-Hilbert action (where α and β are constants), have been considered in [391, 979], while the FLRW solutions of other R+f(Ĝ) theories have been considered in [971, 323].”