2014/05/09 by Suroso, Agus, Zen, Freddy P.
#FOS: Physical sciences #General Physics (physics.gen-ph)
paper · doi:10.48550/arxiv.1407.6624
We discussed a mechanism that allows the universe to start from lower dimension (d < 4) in its very early era and evolves to four dimension at the end of the process. The mechanism is generated by a nonminimal derivative coupling of scalar field, where derivative terms of the scalar field coupled to curvature tensor. We solve the Einstein equations for a limit of large and nearly constant Hubble parameter and analyze the evolution of the Hubble parameter in this limit. The lower-dimensionality in early universe has advantages in the context of unification theory.