%0 Journal Article
%T Extending the generalized Chaplygin gas model by using geometrothermodynamics
%A Alejandro Aviles
%A Aztl¨˘n Bastarrachea-Almodovar
%A Lorena Campuzano
%A Hernando Quevedo
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevD.86.063508
%X We use the formalism of geometrothermodynamics (GTD) to derive fundamental thermodynamic equations that are used to construct general relativistic cosmological models. In particular, we show that the simplest possible fundamental equation, which corresponds in GTD to a system with no internal thermodynamic interaction, describes the different fluids of the standard model of cosmology. In addition, a particular fundamental equation with internal thermodynamic interaction is shown to generate a new cosmological model that correctly describes the dark sector of the Universe and contains as a special case the generalized Chaplygin gas model.
%U http://arxiv.org/abs/1203.4637v2