Graceful exit from inflation to radiation era with rapidly decreasing agegraphic potentials
arXiv:1403.2868 · doi:10.1140/epjp/i2014-14224-x
Abstract
We present a class of models where both the primordial inflation and the late times de Sitter phase are driven by simple phenomenological agegraphic potentials. In this context, a possible new scenario for a smooth exit from inflation to the radiation era is discussed by resorting the kination (stiff) era but without the inefficient radiation production mechanism of these models. This is done by considering rapidly decreasing expressions for soon after inflation. We show that the parameters of our models can reproduce the scalar spectral parameter predicted by Planck data in particular for models with concave potentials. Finally, according to the recent BICEP2 data, all our models allow a huge amount of primordial gravitational waves.
arXiv commentFinal version published in EPJ PLUS
References in corpus (21)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Quintessence, Cosmic Coincidence, and the Cosmological Constant
- Measurements of the Cosmological Parameters Omega and Lambda from the First 7 Supernovae at z >= 0.35
- BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
- Cosmological Tracking Solutions
- Recent Progress in Baryogenesis
- Quintessential inflation
- A Dark Energy Model Characterized by the Age of the Universe
- A New Model of Agegraphic Dark Energy
- Deflationary Universe Scenario
- Electroweak Baryogenesis and the Expansion Rate of the Universe
- Inflation and Preheating in NO models
- On likely values of the cosmological constant
- An Uncertainty Relation of Space-Time
- Black Hole Remnants in the Early Universe
- Dark energy equation of state and anthropic selection
- From inflation to dark energy through a dynamical Lambda: an attempt at alleviating fundamental cosmic puzzles
- Dark energy from primordial inflationary quantum fluctuations
- Physically motivated uncertainty relations at the Planck length for an emergent non commutative spacetime
- Building non commutative spacetimes at the Planck length for Friedmann flat cosmologies