Semiclassical analysis of the tensor power spectrum in the Starobinsky inflationary model
arXiv:2008.04750 · doi:10.1142/S0218271821500401
Abstract
In this work we calculate the tensor power spectrum and the tensor-to-scalar ratio r within the frame of the Starobinsky inflationary model using the improved uniform approximation method and the third-order phase-integral method. We compare our results with those obtained with numerical integration and the slow-roll approximation to second order. We have obtained consistent values of r using the different approximations, and r is inside the interval reported by observations.
arXiv comment13 pages, 5 figures. arXiv admin note: text overlap with arXiv:2006.16807
References in corpus (18)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Encyclopaedia Inflationaris
- Mission design of LiteBIRD
- The Density Perturbation Power Spectrum to Second-Order Corrections in the Slow-Roll Expansion
- Comments on the Starobinsky Model of Inflation and its Descendants
- The Inflationary Perturbation Spectrum
- Improved WKB analysis of cosmological perturbations
- Initial conditions for Inflation in an FRW Universe
- Genericness of pre-inflationary dynamics and probability of the desired slow-roll inflation in modified loop quantum cosmologies
- Inflationary Perturbations and Precision Cosmology
- Analytic Solution of the Starobinsky Model for Inflation
- Method of comparison equations for cosmological perturbations
- Slow-Roll Inflation with Exponential Potential in Scalar-Tensor Models
- What is the amplitude of the Gravitational Waves background expected in the Starobinsky model ?
- Unification of inflation and dark matter in the Higgs-Starobinsky model
- Computation of inflationary cosmological perturbations in the power-law inflationary model using the phase-integral method
- Computation of inflationary cosmological perturbations in chaotic inflationary scenarios using the phase-integral method
- Semiclassical analysis of the Starobinsky inflationary model