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