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Title: G-warm inflation

Abstract

A warm inflationary universe in the context of Galileon model or G-model is studied. Under a general formalism we study the inflationary dynamics and the cosmological perturbations considering a coupling of the form G (φ, X )= g (φ) X . As a concrete example, we consider an exponential potential together with the cases in which the dissipation and Galilean coefficients are constants. Also, we study the weak regime given by the condition R <1+3 gH φ-dot , and the strong regime in which 1< R +3 gH φ-dot . Additionally, we obtain constraints on the parameters during the evolution of G-warm inflation, assuming the condition for warm inflation in which the temperature T > H , the conditions or the weak and strong regimes, together with the consistency relation r = r ( n {sub s} ) from Planck data.

Authors:
 [1]
  1. Instituto de Física, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, Casilla 4059, Valparaíso (Chile)
Publication Date:
OSTI Identifier:
22676214
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 05; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMOLOGICAL MODELS; COUPLING; DISTURBANCES; INFLATIONARY UNIVERSE; PERTURBATION THEORY; SIMULATION

Citation Formats

Herrera, Ramón, E-mail: ramon.herrera@pucv.cl. G-warm inflation. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/05/029.
Herrera, Ramón, E-mail: ramon.herrera@pucv.cl. G-warm inflation. United States. doi:10.1088/1475-7516/2017/05/029.
Herrera, Ramón, E-mail: ramon.herrera@pucv.cl. Mon . "G-warm inflation". United States. doi:10.1088/1475-7516/2017/05/029.
@article{osti_22676214,
title = {G-warm inflation},
author = {Herrera, Ramón, E-mail: ramon.herrera@pucv.cl},
abstractNote = {A warm inflationary universe in the context of Galileon model or G-model is studied. Under a general formalism we study the inflationary dynamics and the cosmological perturbations considering a coupling of the form G (φ, X )= g (φ) X . As a concrete example, we consider an exponential potential together with the cases in which the dissipation and Galilean coefficients are constants. Also, we study the weak regime given by the condition R <1+3 gH φ-dot , and the strong regime in which 1< R +3 gH φ-dot . Additionally, we obtain constraints on the parameters during the evolution of G-warm inflation, assuming the condition for warm inflation in which the temperature T > H , the conditions or the weak and strong regimes, together with the consistency relation r = r ( n {sub s} ) from Planck data.},
doi = {10.1088/1475-7516/2017/05/029},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2017,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}