Mixed inflaton and curvaton perturbations
Journal Article
·
· Physical Review. D, Particles Fields
- Institut d'Astrophysique de Paris, GRECo, FRE 2435-CNRS, 98bis Boulevard Arago, 75014 Paris (France)
A recent variant of the inflationary paradigm is that the primordial curvature perturbations come from quantum fluctuations of a scalar field, subdominant and effectively massless during inflation, called the 'curvaton', instead of the fluctuations of the inflaton field. We consider the situation where the primordial curvature perturbations generated by the quantum fluctuations of an inflaton and of a curvaton field are of the same order of magnitude. We compute the total curvature perturbation and its spectrum in this case and we discuss the observational consequences.
- OSTI ID:
- 20705214
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 6 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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