Marco Bruni                                  GGI Florence, October 2006
Motivations for a non-linear EoS
§Acceleration and dark energy:
cosmological constant L (standard LCDM);
modified 4-d gravity;
Higher dimensions effects (branes);
Back reaction;
modified matter sector:
§Quintessence;
§Chaplygin gas;
§Phenomenological approach (this talk).
§
ÒÉmy biggest blunder.Ó
A. Einstein