Radiative inflation and dark energy RIDEs again after BICEP2

Following the ground-breaking measurement of the tensor-to-scalar ratio r=0.20{sup +0.07}{sub -0.05} by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the M{sup 2}|Φ|{sup 2}ln(|Φ|{sup 2}/Λ{sup 2}) potential an...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2014-08, Vol.2014 (8), p.40-40, Article 040
Main Authors: Bari, Pasquale Di, King, Stephen F., Luhn, Christoph, Merle, Alexander, Schmidt-May, Angnis
Format: Article
Language:English
Subjects:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
CHAOS THEORY
COMPARATIVE EVALUATIONS
COSMOLOGICAL INFLATION
dark energy theory
gravitational waves/experiments
inflation
NONLUMINOUS MATTER
POTENTIALS
SCALARS
TENSORS
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Summary:Following the ground-breaking measurement of the tensor-to-scalar ratio r=0.20{sup +0.07}{sub -0.05} by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the M{sup 2}|Φ|{sup 2}ln(|Φ|{sup 2}/Λ{sup 2}) potential and compare its predictions to those based on the traditional chaotic inflation M{sup 2}|Φ|{sup 2} potential. We find a best-fit value in the RIDE model of r=0.18 as compared to r=0.17 in the chaotic model, with the spectral index being n{sub S}=0.96 in both models.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2014/08/040