Geometrical origin of entropy during inflation from the STM theory of gravity
arXiv:0802.4249 · doi:10.1016/j.physletb.2008.09.015
Abstract
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.
Final version, to be published in Phys. Lett. B