Precision of Inflaton Potential Reconstruction from CMB Using the General Slow-Roll Approximation

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dc.creatorKadota, Kenji
dc.creatorDodelson, Scott
dc.creatorHu, Wayne
dc.creatorStewart, Ewan D.
dc.date2005-05-09
dc.date2005-07-13
dc.date.accessioned2026-07-07T11:29:45Z
dc.date.available2026-07-07T11:29:45Z
dc.descriptionThrough a principal component analysis, we study how accurately CMB observables can constrain inflaton potentials in a model independent manner. We apply the general slow-roll approximation in our analysis where we allow, in contrast to the standard slow-roll approximation, the possibility of variations in $V''(ϕ)$ and take into account the fact that horizon crossing is not an instantaneous event. Our analysis provides a set of modes to be used in fitting observables. We find that of order five of these modes will be constrained by future observations, so a fully general data analysis package could use the amplitudes of just a handful of modes as free parameters and retain all relevant information in the data.
dc.identifierhttps://arxiv.org/abs/astro-ph/0505158
dc.identifierhttp://arxiv.org/abs/astro-ph/0505158
dc.identifierPhys.Rev.D72:023510,2005
dc.identifierdoi:10.1103/PhysRevD.72.023510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196815
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePrecision of Inflaton Potential Reconstruction from CMB Using the General Slow-Roll Approximation
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