Fresh inflation with increasing cosmological parameter

MAURICIO BELLINI

PHYSICAL REVIEW D - PARTICLE AND FILDS

American Physical Society

Lugar: New York; Año: 2003 vol. 67 p. 3031 - 3034

0556-2821

I study a fresh inflationary model with an increasing F-cosmological parameter. The model provides sufficient e-folds to solve the flatness or horizon problem and the density fluctuations agree with experimental values. The temperature increases during fresh inflation and reaches its maximum value when inflation ends. This fact could provide a transition between inflation and the radiation-dominated epoch, once inflation ends. I find that entropy perturbations always remain below 10-4 during fresh inflation and become negligible when fresh inflation ends. Hence, the adiabatic fluctuations dominate the primordial spectrum at the end of fresh inflation.