Reconstruction of scalar field theories realizing inflation consistent with the Planck and BICEP2 results

Abstract

We reconstruct scalar field theories to realize inflation compatible with the BICEP2 result as well as the Planck. In particular, we examine the chaotic inflation model, natural (or axion) inflation model, and an inflationary model with a hyperbolic inflaton potential. We perform an explicit approach to find out a scalar field model of inflation in which any observations can be explained in principle.

7 pages, no figure, version accepted for publication in Physics Letters B

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• Revisiting Fractional Cosmology
• Reconciling Induced-Gravity Inflation in Supergravity With The Planck 2013 & BICEP2 Results
• Possible evolution of a bouncing universe in cosmological models with non-minimally coupled scalar fields
• Generation of large-scale magnetic fields, non-Gaussianity, and primordial gravitational waves in inflationary cosmology
• Inflation without self-reproduction in $F(R)$ gravity
• On the Renormalization Group perspective of $\alpha$-attractors
• Comparing geometric and gravitational particle production in Jordan and Einstein frames
• Reconstructing the Universe Evolution from Loop Quantum Cosmology Scalar Fields
• Scalar field evolution at background and perturbation levels for a broad class of potentials
• Non-local scalar fields inflationary mechanism in light of Planck $2013$
• Sustaining quasi de-Sitter inflation with bulk viscosity
• Returning Back to Mukhanov Parametrization of Inflationary Equation of State
• Light Scalars and the Cosmos: Nambu-Goldstone and Otherwise