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

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

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 . 34 15 v 1 [ gr - q c ] 1 8 O ct 2 00 7 Modified gravity and the origin of inertia

Modified gravity theory is known to violate Birkhoff’s theorem. We explore a key consequence of this violation, the effect of distant matter in an Einstein-de Sitter universe on the motion of test particles. We find that when a particle is accelerated, a force is experienced that is proportional to the particle’s mass and acceleration and acts in the direction opposite to that of the accelerati...

ar X iv : 0 71 2 . 38 38 v 3 [ gr - q c ] 3 1 M ay 2 00 8 General Transformation Formulas for Fermi - Walker Coordinates

ar X iv : 0 80 1 . 07 24 v 2 [ gr - q c ] 8 J an 2 00 8 Emergent physics : Fermi point scenario

The Fermi-point scenario of emergent gravity has the following consequences: gravity emerges together with fermionic and bosonic matter; emergent fermionic matter consists of massless Weyl fermions; emergent bosonic matter consists of gauge fields; Lorentz symmetry persists well above the Planck energy; space-time is naturally 4-dimensional; Universe is naturally flat; cosmological constant is ...

ar X iv : 0 80 1 . 07 24 v 1 [ gr - q c ] 4 J an 2 00 8 Emergent physics : Fermi point scenario

The Fermi-point scenario of emergent gravity has the following consequences: gravity emerges together with fermionic and bosonic matter; emergent fermionic matter consists of massless Weyl fermions; emergent bosonic matter consists of gauge fields; Lorentz symmetry persists well above the Planck energy; space-time is naturally 4-dimensional; Universe is naturally flat; cosmological constant is ...