HYBRID INFLATION FOLLOWED BY MODULAR INFLATION
نویسندگان
چکیده
منابع مشابه
Hybrid Inflation Followed by Modular Inflation
Inflationary models with a superheavy scale F-term hybrid inflation followed by an intermediate scale modular inflation are considered. The restrictions on the power spectrum PR of curvature perturbation and the spectral index ns from the recent data within the power-law cosmological model with cold dark matter and a cosmological constant can be met provided that the number of e-foldings NHI∗ s...
متن کاملF-Term Hybrid Inflation Followed by Modular Inflation
We consider the well motivated model of the (standard) supersymmetric (SUSY) Fterm hybrid inflation (FHI) which can be realized close to the grand unification (GUT) scale. The predicted scalar spectral index ns cannot be smaller than 0.98 and can exceed unity including corrections from minimal supergravity (SUGRA), if the number of e-foldings corresponding to the pivot scale k∗ = 0.002/Mpc is a...
متن کاملHybrid inflation.
Usually inflation ends either by a slow rolling of the inflaton field, which gradually becomes faster and faster, or by a first-order phase transition. We describe a model where inflation ends in a different way, due to a very rapid rolling (‘waterfall’) of a scalar field σ triggered by another scalar field φ. This model looks as a hybrid of chaotic inflation with V (φ) = m φ 2 and the usual th...
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 کاملRemote Inflation : Hybrid - like inflation without hybrid - type potential
A new scenario of hybrid-like inflation is considered without using hybridtype potential. Radiation raised continuously by a dissipating inflaton field causes symmetry restoration in a remote sector, and the false-vacuum energy of the remote sector dominates the energy density during inflation. Remote inflation is terminated when the temperature reaches the critical temperature, or when the slo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2007
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x07038980