ar X iv : 1 10 1 . 54 01 v 2 [ gr - q c ] 1 5 Ju n 20 11 Asymptotically Safe Cosmology

ar X iv : 0 80 6 . 26 03 v 1 [ gr - q c ] 1 6 Ju n 20 08 Gravitation in the solar system and metric extensions of general relativity

Despite its remarkable agreement with gravity tests in the solar system, general relativity is challenged at larger scales. Large scale tests performed in the solar system by the Pioneer 10/11 probes have failed to confirm the expected gravity laws. We discuss here extensions of general relativity which preserve its geometrical nature while showing an ability to conciliate the Pioneer anomalies...

ar X iv : 0 70 6 . 18 99 v 1 [ gr - q c ] 1 3 Ju n 20 07 Spacetime Lagrangian Formulation of Barbero - Immirzi Gravity

We shall here discuss a new spacetime gauge-covariant Lagrangian formulation of General Relativity by means of the Barbero-Immirzi SU(2)-connection on spacetime. To the best of our knowledge the Lagrangian based on SU(2) spacetime fields seems to appear here for the first time.

ar X iv : 1 50 1 . 01 18 0 v 1 [ gr - q c ] 6 J an 2 01 5 The asymptotic of static isolated systems and a generalised uniqueness for Schwarzschild

It is proved that any static system that is spacetime-geodesically complete at infinity, and whose spacelike-topology outside a compact set is that of R minus a ball, is asymptotically flat. The matter is assumed compactly supported and no energy condition is required. A similar (though stronger) result applies to black holes too. This allows us to state a large generalisation of the uniqueness...

ar X iv : q ua nt - p h / 02 06 11 6 v 1 1 8 Ju n 20 02 Five Lectures On Dissipative Master Equations

ar X iv : h ep - p h / 01 01 11 9 v 1 1 1 Ja n 20 01 A Status Review of Inflationary Cosmology 1

The first aim of this lecture is to highlight two areas of recent progress in inflationary cosmology, namely reheating and the quantum theory of cosmological perturbations. The second aim is to discuss important conceptual problems for the current realizations of inflation based on fundamental scalar matter fields, and to present some new approaches at solving these problems.