Modulated inflation from kinetic term

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dc.creatorMatsuda, Tomohiro
dc.date2008-04-21
dc.date2008-05-03
dc.date.accessioned2026-07-07T11:50:02Z
dc.date.available2026-07-07T11:50:02Z
dc.descriptionWe study modulated inflation from kinetic term. Using the Mukhanov-Sasaki variable, it is possible to determine how mixing induced by the kinetic term feeds the curvature perturbation with the isocurvature perturbation. We show explicitly that the analytic result obtained from the evolution of the Mukhanov-Sasaki variable is consistent with the $δN$-formula. From our results, we find analytic conditions for the modulated fluctuation and the non-Gaussianity parameter.
dc.description15 pages, 1 figure, Accepted for publication in JCAP
dc.identifierhttps://arxiv.org/abs/0804.3268
dc.identifierhttp://arxiv.org/abs/0804.3268
dc.identifierJCAP0805:022,2008
dc.identifierdoi:10.1088/1475-7516/2008/05/022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203440
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleModulated inflation from kinetic term
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