Many-field inflation: universality or prior dependence?
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DOI: 10.1088/1475-7516/2020/04/021
Abstract: We investigate the observational signatures of many-field inflation and present analytic expressions for the spectral index as a function of the prior. For a given prior we employ the central limit theorem and the horizon… read more here.
Keywords: field inflation; inflation universality; universality prior; many field ... See more keywords