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arXiv 2012-10-29 DOI 10.1103/PhysRevD.87.083501 0 views

Creating perturbations from a decaying field during inflation

Mazumdar, Anupam · Wang, Lingfei

Original · EN

Typically the fluctuations generated from a decaying field during inflation do not contribute to the large scale structures. In this paper we provide an example where it is possible for a field which slowly rolls and then decays during inflation to create all the matter perturbations with a slightly red-tilted spectral index, with no isocurvature perturbations, and with a possibility of a departure from Gaussian fluctuations.

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