# Assisted chaotic inflation in brane-world cosmology

## Abstract

Assisted chaotic inflation in brane cosmology is discussed. We work in the framework of Randall-Sundrum (RS) II model, in which adopting the RS condition the only parameter is the five-dimensional Planck mass. Using the scalar spectral index and the amplitude of scalar perturbations we determine both the mass of the scalar fields responsible for inflation and the fundamental Planck mass of the higher-dimensional theory. We find that the mass of the scalars has the typical value of the inflaton mass in chaotic inflation (M{sub I}{approx}10{sup 13} GeV) and that the five-dimensional Planck mass is very close to the grand unified theories (GUT) scale (M{sub 5}{approx}(10{sup 16}-10{sup 17}) GeV). Furthermore, no matter how many scalar fields we use it is not possible to have chaotic inflation with field values below the fundamental Planck mass.

- Authors:

- ASC, Department of Physics LMU, Theresienstrasse 37, 80333 Munich (Germany)

- Publication Date:

- OSTI Identifier:
- 20935280

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevD.75.107302; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANES; CHAOS THEORY; COSMOLOGY; EEV RANGE; GRAND UNIFIED THEORY; INFLATIONARY UNIVERSE; M-THEORY; MASS; PERTURBATION THEORY; SCALAR FIELDS; SCALARS

### Citation Formats

```
Panotopoulos, Grigoris.
```*Assisted chaotic inflation in brane-world cosmology*. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVD.75.107302.

```
Panotopoulos, Grigoris.
```*Assisted chaotic inflation in brane-world cosmology*. United States. doi:10.1103/PHYSREVD.75.107302.

```
Panotopoulos, Grigoris. Tue .
"Assisted chaotic inflation in brane-world cosmology". United States.
doi:10.1103/PHYSREVD.75.107302.
```

```
@article{osti_20935280,
```

title = {Assisted chaotic inflation in brane-world cosmology},

author = {Panotopoulos, Grigoris},

abstractNote = {Assisted chaotic inflation in brane cosmology is discussed. We work in the framework of Randall-Sundrum (RS) II model, in which adopting the RS condition the only parameter is the five-dimensional Planck mass. Using the scalar spectral index and the amplitude of scalar perturbations we determine both the mass of the scalar fields responsible for inflation and the fundamental Planck mass of the higher-dimensional theory. We find that the mass of the scalars has the typical value of the inflaton mass in chaotic inflation (M{sub I}{approx}10{sup 13} GeV) and that the five-dimensional Planck mass is very close to the grand unified theories (GUT) scale (M{sub 5}{approx}(10{sup 16}-10{sup 17}) GeV). Furthermore, no matter how many scalar fields we use it is not possible to have chaotic inflation with field values below the fundamental Planck mass.},

doi = {10.1103/PHYSREVD.75.107302},

journal = {Physical Review. D, Particles Fields},

number = 10,

volume = 75,

place = {United States},

year = {Tue May 15 00:00:00 EDT 2007},

month = {Tue May 15 00:00:00 EDT 2007}

}