2 papers
gr-qc1996
Scalar Perturbations in a String Inspired Inflationary Scenario
C. E. M. Batista, J. C. Fabris
We consider an inflationary model inspired in the low energy limit of string theory. In this model, the scale factor grows exponentially with time. A perturbation study is performe…
gr-qc1996
Primordial Density Fluctuations in Phase Coupling Gravity
C. E. M. Batista, M. Schiffer
In this paper we study the evolution of density perturbations in the framework of Phase Coupling Gravity theory at the very early universe. We show that these perturbation display…