AT1 - Alternative Theories (A) |
Speaker_ |
Capozziello, Salvatore |
Co-autors |
Salvatore Capozziello, Vincenzo F. Cardone, Antonio Troisi |
Talk _ |
Dark Energy and Dark Matter as Curvature Effects |
Abstract _ |
Higher order theories of gravity have recently attracted a lot of interest as alternative candidates to explain the observed cosmic acceleration, the flatness of the rotation curves of spiral galaxies and other relevant astrophysical phenomena. Very likely, what we call “dark matter” and “dark energy” are nothing else but signals of the breakdown of General Relativity at large scales. Furthermore, PPN-paramete,s deduced from Solar System experiments do not exclude, a priori, the possibility that such theories could give small observable effects also at these scales. We review these results giving the basic ingredients of such an approach. |