Geometrical origin of entropy during inflation from the STM theory of gravity

Jesús Romero, Mauricio Bellini
2008 Physics Letters B  
Using a recently introduced 5D Riemann flat metric, we investigate the possibility of introducing dissipation in the dynamics of the inflaton field on an effective 4D FRW metric, in the framework of the STM theory of gravity.
doi:10.1016/j.physletb.2008.09.015 fatcat:gbmiwr5dq5c53b6jx773w4mike