Approach to exact inflation in modified Friedmann equation

Abstract

We study inflationary universe models that are characterized by a single scalar inflaton field. The study of these models are based on two dynamical equations; one corresponding to the Klein-Gordon equation for the inflaton field, and the other, to a generalized Friedmann equation. After describing the kinematics and dynamics of the models, we determine in some detail scalar density perturbations and relic gravitational waves. We apply this approach to the Friedmann-Chern-Simons and the brane-world inflationary models.

(20 pages, 5 figures, Accepted by JCAP)

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• CfA3: 185 Type Ia Supernova Light Curves from the CfA
• Horava-Lifshitz Cosmology: A Review
• Corrected Entropy-Area Relation and Modified Friedmann Equations
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• Constraining Inflation
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• Hubble multi-scalar inflation
• Accelerated FRW Solutions in Chern-Simons Gravity
• A Jacobian elliptic single-field inflation
• On the constant roll complex scalar field inflationary models
• Hamilton-Jacobi approach for quasi-exponential inflation: predictions and constraints after Planck 2015 results
• Holographic cosmology and tachyon inflation
• Noncommutative Universe and Chameleon Field Dynamics
• Planck-Scale Corrections to Friedmann Equation
• Swampland conjectures and single field inflation in non-standard cosmological scenarios
• Thermodynamics of Modified Chaplygin-Jacobi Gas and Modified Chaplygin-Abel Gas: Stability Analysis and Observational Constraints
• Vacuum thin shells in Einstein-Gauss-Bonnet brane-world cosmology
• The exact solution approach to warm inflation
• (1+1)-Dirac bound states in one-dimension; position-dependent Fermi velocity and mass
• Primordial perturbations and inflation in a holography inspired Gauss-Bonnet cosmology
• Implications of single field inflation in general cosmological scenarios on the nature of dark energy given the swampland conjectures