Generating the curvature perturbation with instant preheating
arXiv:hep-th/0610232 · doi:10.1088/1475-7516/2007/03/003
Abstract
A new mechanism for generating the curvature perturbation at the end of inflaton has been investigated. The dominant contribution to the primordial curvature perturbation may be generated during the period of instant preheating. The mechanism converts isocurvature perturbation related to a light field into curvature perturbation, where the ``light field'' is not the inflaton field. This mechanism is important in inflationary models where kinetic energy is significant at the end of inflaton. We show how one can apply this mechanism to various brane inflationary models.
17 pages, 1 figure, To appear in JCAP
References in corpus (7)
- Gauge invariant MSSM inflaton
- A-term inflation and the smallness of the neutrino masses
- Nongaussianity from Tachyonic Preheating in Hybrid Inflation
- Heating in Brane Inflation and Hidden Dark Matter
- Generating the Curvature Perturbation at the End of Inflation in String Theory
- Elliptic Inflation: Generating the curvature perturbation without slow-roll
- Brane inflation without slow-roll
Cited by in corpus (28)
- Review of local non-Gaussianity from multi-field inflation
- Local non-Gaussianity from inflation
- Non-Gaussianity beyond slow roll in multi-field inflation
- Nongaussianity from Tachyonic Preheating in Hybrid Inflation
- On the Issue of the ζSeries Convergence and Loop Corrections in the Generation of Observable Primordial Non-Gaussianity in Slow-Roll Inflation. Part I: the Bispectrum
- Preheating and the non-gaussianity of the curvature perturbation
- Cosmology of the Tachyon in Brane Inflation
- A Study of Structure Formation and Reheating in the D3/D7 Brane Inflation Model
- NO Curvatons or Hybrid Quintessential Inflation
- The Cosmological Slingshot Scenario: A Stringy Early Times Universe
- Delta-N formalism for the evolution of the curvature perturbations in generalized multi-field inflation
- Spotted Inflation
- Particle production and dissipation caused by the Kaluza-Klein tower
- ISS-flation
- Remote Inflation: Hybrid-like inflation without hybrid-type potential
- Modulated decay in the multi-component Universe
- Reheating the D-brane universe via instant preheating
- Running spectral index from shooting-star moduli
- Non-standard kinetic term as a natural source of non-Gaussianity
- Instant preheating in a scale invariant two measures theory
- Evolution of curvature perturbation in generalized gravity theories
- Remote Inflation as hybrid-like sneutrino/MSSM inflation
- Entropy production and curvature perturbation from dissipative curvatons
- Aspects of warm-flat directions
- Non-gaussianity and Statistical Anisotropy in Cosmological Inflationary Models
- Curvaton mechanism after multi-field inflation
- Modulated Inflation (@SUSY08)
- Inflation, modulation and baryogenesis with warm directions