Higher order corrections to primordial spectra from cosmological inflation
By D. Schwarz, César A. Terrero-Escalante, Alberto A. Garćıa. 2001
233 citations recorded by the source corpus.
Abstract We calculate power spectra of cosmological perturbations at high accuracy for two classes of inflation models. We classify the models according to the behaviour of the Hubble distance during inflation. Our approximation works if the Hubble distance can be approximated either to be a constant or to grow linearly with cosmic time. Many popular inflationary models can be described in this way, e.g., chaotic inflation with a monomial potential, power-law inflation and inflation at a maximum. Our scheme of approximation does not rely on a slow-roll expansion. Thus we can make accurate predictions for some of the models with large slow-roll parameters.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2059dc044c8eaf3a1f94cb2dfdbe006b0fc7fa22
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In Astronomy and Astrophysics
- D. Schneider
- Will J. Percival
- Daniel J. Eisenstein
- J. Tinker
- J. Brinkmann
- A. Ross
- J. Brownstein
- D. Weinberg
In Nuclear and High Energy Physics
- Will J. Percival
- D. Schneider
- Daniel J. Eisenstein
- D. Weinberg
- J. Brinkmann
- J. Tinker
- Jérôme Martin
- K. Kannike
Citations in the corpus
- Single field double inflation and primordial black holes (2017, background): “However, studies that go beyond slow-roll indicate that the relative error is expected to be of order H [66].”
- Generating PBHs and small-scale GWs in two-field models of inflation (2020, methodology): “We define the Hubble Flow Functions (HFFs) or slow-roll parameters as follows [56]:”
- The clustering of galaxies in the SDSS‐III Baryon Oscillation Spectroscopic Survey: cosmological implications of the large‐scale two‐point correlation function (2012, methodology): “We can explore the implications of our results in terms of constraints on inflationary models by analysing the horizon flow parameters of Schwarz et al. (2001).”
- The best inflationary models after Planck (2013, background): “where n are the Hubble-flow parameters evaluated at Hubble exit and P0 represents the overall normalisation [39, 40].”