Extended curvaton reheating in inflationary models

@article{Campuzano2006ExtendedCR,
  title={Extended curvaton reheating in inflationary models},
  author={Cuauhtemoc Campuzano and S{\'e}rgio del Campo and Ram'on Herrera},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2006},
  volume={2006},
  pages={017 - 017}
}
The curvaton reheating in a non-oscillatory inflationary universe model is studied in a Jordan–Brans–Dicke theory. For different scenarios, the temperature of reheating is computed. The result tells us that the reheating temperature becomes practically independent of the Jordan–Brans–Dicke parameter w. This reheating temperature turns out to be quite different when compared with that obtained from Einstein’s theory of gravity. 
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References

SHOWING 1-10 OF 70 REFERENCES

Curvaton reheating in tachyonic inflationary models

Curvaton reheating in non-oscillatory inflationary models

Curvaton reheating: An application to braneworld inflation

The curvaton was introduced recently as a distinct inflationary mechanism for generating adiabatic density perturbations. Implicit in that scenario is that the curvaton offers a new mechanism for…

The curvaton scenario in supersymmetric theories

We analyze the curvaton scenario in the context of supersymmety. Supersymmetric theories contain many scalars, and therefore many curvaton candidates. To obtain a scale invariant perturbation…

The Curvaton hypothesis and the eta-problem of quintessential inflation, with and without branes

It is argued why, contrary to expectations, steep brane-inflation cannot really help in overcoming the η problem of quintessential inflation model building. In contrast it is shown that the problem…

Aspects of Tachyonic inflation with exponential potential

We consider issues related to tachyonic inflation with an exponential potential. We find an exact solution of the evolution equations in the slow roll limit in FRW cosmology. We also carry out a…

Primordial density perturbation in the curvaton scenario

We analyze the primordial density perturbation when it is generated by a “curvaton” field different from the inflaton. In some cases this perturbation may have large isocurvature components, fully…

Adiabatic CMB perturbations in pre - big bang string cosmology

Inflationary attractor from tachyonic matter

We study the complete evolution of a flat and homogeneous universe dominated by tachyonic matter. We demonstrate the attractor behavior of tachyonic inflation using the Hamilton-Jacobi formalism. We…

Isocurvature baryon perturbations and inflation.

  • Mollerach
  • Physics
    Physical review. D, Particles and fields
  • 1990
It is found that the resulting fluctuations are not of the isocurvature type, but that the entropy perturbation induces a curvature fluctuation which is larger than the entropic one before the wavelengths of the perturbations enter the Hubble radius.
...