The Inflationary Trispectrum for Models with Large Non-Gaussianities

Simple item page
dc.creatorChen, Xingang
dc.creatorHuang, Min-xin
dc.creatorShiu, Gary
dc.date2006-10-22
dc.date2008-12-04
dc.date.accessioned2026-07-07T12:09:06Z
dc.date.available2026-07-07T12:09:06Z
dc.descriptionWe compute the leading order contribution to the four-point function of the primordial curvature perturbation in a class of single field models where the inflationary Lagrangian is a general function of the inflaton and its first derivative. This class of models includes string motivated inflationary models such as DBI inflation. We find that the trispectrum for some range of parameters could potentially be observed in future experiments. Moreover, the trispectrum can distinguish DBI inflation from other inflation models with large non-Gaussianities which typically have a similar bispectrum. We also derive a set of consistency conditions for n-point functions of the primordial curvature perturbation in single field inflation, generalizing Maldacena's result for 3-point functions.
dc.descriptionv2: 5 pages, journal version. v3, v4: formulae for the momentum dependence of trispectrum corrected, main conclusions remain unchanged, this version supersedes the journal version. v5: minor revision with an added reference
dc.identifierhttps://arxiv.org/abs/hep-th/0610235
dc.identifierhttp://arxiv.org/abs/hep-th/0610235
dc.identifierPhys.Rev.D74:121301,2006
dc.identifierdoi:10.1103/PhysRevD.74.121301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/209512
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Inflationary Trispectrum for Models with Large Non-Gaussianities
dc.typetext

Files

Collections

arXiv