Published April 1, 2011
| Version v1
Journal article
Non-linear corrections to inflationary power spectrum
Creators
- 1. Instituut-Lorentz for Theoretical Physics, Universiteit Leiden, 2333 CA Leiden (Netherlands)
- 2. Korea Astronomy and Space Science Institute, Daejeon 305-348 (Korea, Republic of)
- 3. Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu 702-701 (Korea, Republic of)
Description
We study non-linear contributions to the power spectrum of the curvature perturbation on super-horizon scales, produced during slow-roll inflation driven by a canonical single scalar field. We find that on large scales the linear power spectrum dominates and leading non-linear corrections remain negligible, indicating that we can safely rely on linear perturbation theory to study inflationary power spectrum. We also briefly comment on the infrared and ultraviolet behaviour of the non-linear corrections
Availability note (English)
Available from http://dx.doi.org/10.1088/1475-7516/2011/04/004Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Cosmology and Astroparticle Physics
- Journal Volume
- 2011
- Journal Issue
- 04
- Journal Page Range
- p. 004
- ISSN
- 1475-7516
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45099187
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ASTROPHYSICS; CORRECTIONS; COSMOLOGY; DISTURBANCES; ENERGY SPECTRA; INFLATIONARY UNIVERSE; NONLINEAR PROBLEMS; SCALAR FIELDS; ULTRAVIOLET RADIATION
- Descriptors DEC
- COSMOLOGICAL MODELS; ELECTROMAGNETIC RADIATION; MATHEMATICAL MODELS; PHYSICS; RADIATIONS; SPECTRA