# 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:

- 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}

}