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Non-Gaussianity from attractor curvaton.
- Source :
-
Physical Review D: Particles, Fields, Gravitation & Cosmology . Mar2013, Vol. 87 Issue 6, p1-8. 8p. - Publication Year :
- 2013
-
Abstract
- We propose a curvaton model in which the initial condition of the curvaton oscillation is determined by its attractor behavior during inflation. Assuming a chaotic inflation model, we find that the initial condition determined by the attractor behavior is appropriate to generate a sizable non-Gaussianity contribution to the curvature perturbation, which will be tested in the foreseeable future. Implications on the thermal history of the Universe and on particle physics models are also discussed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 24700010
- Volume :
- 87
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Physical Review D: Particles, Fields, Gravitation & Cosmology
- Publication Type :
- Periodical
- Accession number :
- 87412704
- Full Text :
- https://doi.org/10.1103/PhysRevD.87.063514