The Classical and Quantum Inflaton: the Precise Inflationary Potential and Quantum Inflaton Decay after WMAP
نویسنده
چکیده
X iv :a st ro -p h/ 05 03 12 8v 1 6 M ar 2 00 5 The Classical and Quantum Inflaton: the Precise Inflationary Potential and Quantum Inflaton Decay after WMAP D. Boyanovsky a b ∗ , H. J. de Vega b a † , N. G. Sanchez. Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA Observatoire de Paris, LERMA. Laboratoire Associé au CNRS UMR 8112. 61, Avenue de l’Observatoire, 75014 Paris, France.
منابع مشابه
Curvature Perturbation from Supersymmetric Flat Directions
We show that a contribution to the total curvature perturbation may be due to the presence of flat directions in supersymmetric models. It is generated at the first oscillation of the flat direction condensate when the latter relaxes to the minimum of its potential after the end of inflation. We also point out that, if the contribution to the total curvature perturbation from supersymmetric fla...
متن کاملPreheating After Modular Inflation
We study (p)reheating in modular (closed string) inflationary scenarios, with a special emphasis on Kähler moduli/Roulette models. It is usually assumed that reheating in such models occurs through perturbative decays. However, we find that there are very strong non-perturbative preheating decay channels related to the particular shape of the inflaton potential (which is highly nonlinear and ha...
متن کاملQuantum Fluctuations of Bulk Inflaton in Inflationary Brane World
The inflationary scenario for the brane world driven by the bulk inflaton is proposed. The quantum fluctuations of the inflaton is calculated and compared to those of the conventional 4-dimensional inflationary scenario. It is shown that the deviation of the primordial spectrum of this model from that of the conventional one is too small to be observed even if AdS radius is very large. Hence, i...
متن کاملBaryogenesis from the inflaton field
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. a r t i c l e i n f o a b s t r a c t In this letter we show that the inflaton can generate the cosmological baryon asymmetry. We take the inflaton to be a complex scalar field with a weakly broken global symmetry and develop a new variant on the Affleck–Dine mechanism. The inf...
متن کاملReheating and Thermalization: Linear vs. Non-linear Relaxation
We consider the case of a scalar field, the inflaton, coupled to both lighter scalars and fermions, and the study the relaxation of the inflaton via particle production in both the linear and non-linear regimes. This has an immediate application to the reheating problem in inflationary universe models. The linear regime analysis offers a rationale for the standard approach to the reheating prob...
متن کامل