ar X iv : 0 90 3 . 02 70 v 2 [ gr - q c ] 1 4 A pr 2 00 9 Cosmological scaling solutions in generalised Gauss - Bonnet gravity theories

M ar 2 00 9 Cosmological scaling solutions in generalised Gauss - Bonnet gravity theories

The conditions for the existence and stability of cosmological power-law scaling solutions are established when the Einstein-Hilbert action is modified by the inclusion of a function of the Gauss-Bonnet curvature invariant. The general form of the action that leads to such solutions is determined for the case where the universe is sourced by a barotropic perfect fluid. It is shown by employing ...

ar X iv : 0 71 0 . 20 41 v 3 [ gr - q c ] 1 3 M ar 2 00 8 Thin - shell wormholes supported by ordinary matter in Einstein – Gauss – Bonnet gravity

The generalized Darmois–Israel formalism for Einstein–Gauss–Bonnet theory is applied to construct thin-shell Lorentzian wormholes with spherical symmetry. We calculate the energy localized on the shell, and we find that for certain values of the parameters wormholes could be supported by matter not violating the energy conditions.

ar X iv : 0 70 9 . 12 58 v 1 [ gr - q c ] 9 S ep 2 00 7 Fermi - point scenario of emergent gravity

Let us assume, that gravity is emergent low-energy phenomenon arising from the topologically stable defect in momentum space – the Fermi point. What are the consequences? We discuss the natural values of fermion masses and cosmological constant; flatness of the Universe; bounds on the Lorentz violation; etc.

ar X iv : 0 70 4 . 33 68 v 2 [ gr - q c ] 2 6 A pr 2 00 7 Search for gravitational waves from binary inspirals in S 3 and S 4 LIGO data

ar X iv : 0 90 6 . 07 13 v 1 [ he p - th ] 3 J un 2 00 9 Non - minimal Maxwell - Modified Gauss - Bonnet Cosmologies : Inflation and Dark Energy

In this paper we show that power-law inflation can be realized in non-minimal gravitational coupling of electromagnetic field with a general function of Gauss-Bonnet invariant. Such a non-minimal coupling may appear due to quantum corrections. We also consider modified Maxwell-F (G) gravity in which non-minimal coupling between electromagnetic field and f (G) occur in the framework of modified ...